☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Iphone Shows in Virtual Input, but not in Studio Monitor

Par : jkorchok — 1 juin 2020 à 20:50
iPhone SE running iOS 13.5 and NDI HX Camera app displays in Virtual Input as IPHONE-SE>NDI HX Camera and is selected:
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But in Studio Monitor, the input sources read None. In Zoom 5.0.4, selecting NewTek NDI Video displays only a black screen. Studio Monitor displays the test patterns with no problem. What am I missing?

I tried to follow the directions for Skype, but your Introduction to NDI is seriously out of date. Skype doesn't have a Tools menu, nor an Options submenu. Instead, I chose Settings. There is no Video Settings option, just Audio & Video, which I selected. There is no Webcam listing, so I chose Camera. On the Camera dropdown, I see only NewTek NDI Video, not NewTek Video Source. I still just got a black screen.

Have you considered a setup PDF for NDI Webcam users? We're a less savvy group than most of the people on this forum and mostly just need an easy way to use basic functions of the software.
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☑ ☆ ✇ NewTek Discussions - General NDI Discussions

Multicast in NDI across subnets

Par : tcomerma — 29 mai 2020 à 15:15

I have some questions regarding the use of multicast in NDI enabled devices that I've been unable to verify by myself.

We've been testing some NDI devices (BirdDog, Magewell, NDI Tools) before deploying into our network. We are a quite large broadcaster and the network covers several buildings, so routing traffic is a must, and multicast is desirable

While testing it seems that transmiters and receivers switch from multicast to unicast when they are on different networks. Even though I selected multicast, with TTL=10 in Access Manager. Support from Magewell said “Please kindly be aware that multicast is not supposed to cross subnet”. Is this true? There is a way to force multicast? I guess it has to be possible, because you can specify a TTL for multicast, and that is only necessary to allow routing.

We’ve set up a Discovery Service. Also Magewell support saig “when a Discovery Serive is enabled, it would force unicast for transmission”. Is this right?

I’ve been unable to find documentation to verify these.

☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI Camera questions

Par : HughC — 29 mai 2020 à 01:20
Last week, I did a very successful presentation of my new live performance initiative, INVITATION – a Socially Distant Performance Installation.

I used Isadora to control it all and got the live feed from my iPhone using the app: New Tek NDI, which seems to be an older app no longer offered by New Tek. I've used it in previous performances and never had any trouble with it and indeed, this performance went smoothly for the most part. I was told that there were a few jittery moments, which I didn't see because I was in the show.

I should mention the that the wireless network is a dedicated AC3900 router with an extender. One node at each end of the performance space, which is a house, so there are some walls and so on.

This Covid related installation will be ongoing on Friday nights for the next little while and in an effort to grow, we've been experimenting with TWO NDI camera's both from the same model of iPhone X. When I went to the New Tek website to get the app onto my partner's iPhone I learned that the app I have has been replaced by the NDI®|HX, which offers 4K and all sorts of other new features. In comparing the two before last week's performance, I learned that my phone with the old app was smooth and worked well and her phone was unacceptable jittery, even when we dialed down the resolution. No problem, we used my phone for the show with the results mentioned above.

Today we tested again with the idea of using BOTH phones at the same time. Using the New Tek apps, both phones were jittery. I decided to try another app on her phone and found JustWifiCam. Now, her phone is perfectly smooth, but mine is unacceptable jittery. I tried JustWifiCam on both phones with the same result: she's smooth, but I'm not. I have another app called NDICam, which hasn't worked in the past, but does work now but with the same jittery result.

FYI, Isadora doesn't seem to have a problem handling the two NDI inputs. The load is about 70% on my laptop, which is a bit underpowered for this, but works.

I wonder if anyone has any ideas as to why my phone was fine last week but not this week? Even with only one phone connected, her phone is smooth (using JustWifiCam) and mine is jittery (using anything).


Hugh in Winnipeg - All test machines, Win10 Pro, 64 bit, OS SSD and separate data SSD.

this laptop: Dell5520 2018, i7 7820HQ; 32 gigs, Quadro M1200 (and Iris 630)...
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI scanner RoI

Par : — 29 mai 2020 à 00:30
Is there a way to save a specific RoI, and have the scanner start up on that region?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

video stuttering and audio sync issues with OBS

Par : jwine — 29 mai 2020 à 00:14
Preface this that I've got a technology day job but am completely new to video production/streaming.

I'm helping setup video streaming for the church I attend. NDI looks great and we've had some reasonable first tests, but I'm having a couple of issues and I'd like to find a way to resolve them so I can be more comfortable spending a fair bit of money on a permanent setup like a PTZ camera. Our current testing setup is using the NDI HX Camera app on an iPhone XS with a lightning ethernet adapter wired to a MacBook Pro (2018, 16GB RAM, 2.6GHz i7) running OBS 25 with the NDI plugin. We're also using the NDI Tools Scan Converter on a windows laptop that runs our presentation from the podium, so OBS is able to capture the presentation and video of the speaker and we can do PIP-style scenes where appropriate. Audio comes through our sound system to a USB capture device.

The problems we've seen is that there's a bit of periodic video stuttering and the audio is not easily synchronized to the video. The audio is the bigger problem right now as the delay value seems to drift around for factors unknown. For example during some testing, we arrived at 750ms delay which seemed to match the video perfectly. However, the next day when we were live streaming an actual service, it started at 900ms and then drifted around to 600ms, 700ms, 800ms. I had to make those changes during the stream, which introduces a brief audio glitch, not to mention it being hard to guess the right value. FWIW, we had also tested taking audio directly from the iPhone's NDI source but that was also delayed and/or unusably glitchy. That setup isn't a viable end-target anyway; we were just testing things.

In retrospect, I realized that we were streaming the highest quality from the iPhone but scaling it way down in OBS since we're only streaming 720p to Facebook. I can see how all that extra data would require additional processing to receive and scale down, so I'm going to test using one of the lower quality settings in the NDI HX Camera app. I'm dubious that would cause all of the issues though, given the hardware we're using. Further, OBS was only reporting 20% CPU usage and a couple hundred dropped frames throughout a 2 hour stream, so it didn't seem too taxed from those metrics.

Are these types of issues normal/expected? Is there anything else I should check or consider? Are there other setups (other software, USB camera, USB HDMI capture card) that would be more stable or consistent? We've got a team of volunteers so we can't need to constantly change the audio delay parameter, or even test it before every service. Can we get to a point where someone just starts the stream and flips scenes as needed, or is that unrealistic?

thanks for any help or guidance!
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Seeking Advice - Streaminhg Live Music and Theater Events

Par : tbarden — 28 mai 2020 à 23:57
We're looking to install multi camera streaming / capture capabilities into our small 80 seat theater. We want the production value of the events to be good or better. For many reasons, the idea of using an NDI based solution really appeals to me but I've been getting feedback from some corners that suggest NDI is not yet ready for prime time. They are advocating for SDI instead. I don't want to invest 40K in something that's not going to do the job. Any advice is greatly appreciated.

☐ ☆ ✇ NewTek Discussions - General NDI Discussions

iPhone is not recognized as NDI Source (NDI HX Camera & NDI Tools 4.0 for Windows)

Par : ryoku — 28 mai 2020 à 23:30
Hello, everyone,

I have the following problem and I'm hoping that somebody can help me.

I would like to use my iPhone 11 as a webcam on my Windows notebook. I have installed the NDI Tools 4.0 on my notebook and downloaded the NDI HX Camera App.

Unfortunately, the iPhone is neither displayed in the Studio Monitor nor in Virtual Input ("No NDI Source found").

- Both devices are in the same WLAN

- The Windows Firewall allows incoming and outgoing connections to the NDI Tools

- The WLAN network is set to private

- The NDI Button in the NDI HX Camera App is blue

Does anyone have any idea what the problem might be?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI and VT5 with OBS/Streaming

Par : inquisitive — 28 mai 2020 à 18:18

Out of curiosity, is there a way to enable the legacy VT5 as a NDI source?

The VT5 is on Win7 machine and I am planning to use a Macbook Pro as the OBS/streaming machine, same network, same house, different room (mainly because the VT5 machine is noisy).

Would the NDI software tools allow this? (it seems that NDI is a more advanced version of iVGA).

Or would I need something a couple of converters ( VT5 Analog to SDI/HDMI) and (SDI/HDMI to NDI) like the Newtek Connect Spark?

☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI HX camera to Tricaster running AE2

Par : Selld — 23 mai 2020 à 22:06
I downloaded the new NDI HX camera app and I was hoping to use it with my older TC Mini running AE2 Version 5-1 191224, which is the latest version. The Mini recognizes the stream, but I get a message that says "To access the NDI stream, please update the receiver software to a version prepared using the NDI 4 SDK (or better)." I downloaded the latest NDI HX drivers for this machine which is build 200520, which is the latest version. Is there something I can update to allow me to use this NDI source?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Capturing full screen with Scan Converter

Par : slcf2003 — 22 mai 2020 à 08:36
I'm totally new to NDI and just trying out the NDI tools. I would like to capture the entire screen area with Scan Converter. The window for configuring ROI comes with a boarder and a title bar, so I can only make the ROI the full screen area minus the title bar. Am I doing it wrong? I'm using Windows 10.

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☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Multiple IP addresses on a NIC

Par : Ivank0 — 21 mai 2020 à 16:46
There's a computer with two IP addresses from different subnets on a single NIC. The first subnet is for a whole LAN. The second subnet is for other equipment and non-routable for the LAN. Other computers with NDI programs see NDI resources on that computer, but show black screen after connection.
So, I armed with Wireshark and found out that mDNS reported the 2nd address to other computers. Therefore, when they could receive nothing because of no route between those subnets.
When I removed the 2nd address everything became fine.

Is there any way to bind NDI to specific IP address?

☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Second display on Notebooks not showing with ScanConverter

Par : mixmexmax — 21 mai 2020 à 09:00
Hi all!
On a desktop computer with two displays attached NDI Scanconverter broadcasts both reliably. But on Notebooks with the internal and one external display (extended desktop) running, NDI scanconverter just broadcasts the internal display of the notebook. How can I get both displays to be broadcast? Thanks for your suggestions.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Code signing issue with mac NDI virtual input?

Par : hi_im_nate — 20 mai 2020 à 22:25
Starting with NDI Tools 4.5, the macOS version of NDI Tools included a virtual input program. This is supposed to allow NDI video sources to emulate a webcam on macOS so that NDI can be used as an input for Skype/Zoom/Slack video calls. After installing the program, I've been unable to use it for this intended functionality. I can launch the program and select an NDI source from the network, but no program that accepts a webcam input can see the NDI virtual input as a camera option. I looked through the system logs for a message that looked related, and I found these:


default        16:18:36.023089 -0700        Photo Booth        Error loading /Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera:  dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera, 0x0106): code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera) not valid for use in process: mapping process is a platform binary, but mapped file is not
default        16:18:36.023180 -0700        Photo Booth        Cannot find function pointer cmioNDIPluginMain for factory <CFUUID 0x6000028312e0> BB86C477-373F-49D9-AA4B-CE86A0E883F1 in CFBundle/CFPlugIn 0x7f9c12f10530 </Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin> (bundle, not loaded)
error        16:18:36.023021 -0700        kernel        Library Validation failed: Rejecting '/Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera' (Team ID: W8U66ET244, platform: no) for process 'Photo Booth(40707)' (Team ID: none, platform: yes), reason: mapping process is a platform binary, but mapped file is not
error        16:21:33.055572 -0700        kernel        Library Validation failed: Rejecting '/Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera' (Team ID: W8U66ET244, platform: no) for process '' (Team ID: BJ4HAAB9B3, platform: no), reason: mapping process and mapped file (non-platform) have different Team IDs
default        16:21:33.055685 -0700        Error loading /Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera:  dlopen(/Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera, 262): no suitable image found.  Did find:
        /Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera: code signature in (/Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin/Contents/MacOS/NDIVirtualCamera) not valid for use in process using Library Validation: mapping process and mapped file (non-platform) have different Team IDs
default        16:21:33.055741 -0700        Cannot find function pointer cmioNDIPluginMain for factory <CFUUID 0x6000008cce40> BB86C477-373F-49D9-AA4B-CE86A0E883F1 in CFBundle/CFPlugIn 0x7fa03c842600 </Library/CoreMediaIO/Plug-Ins/DAL/NDIVirtualCamera.plugin> (bundle, not loaded)

This is from trying to use Photo Booth and Zoom, opening the list of possible sources in each application. I looked up this error online, and it appears to be related to an issue with the certificate used to sign the binary. Is it possible that someone from the NDI team signed the VirtualInput application with a normal app certificate and not one that has permission to run as a camera plugin?

I'm using macOS 10.14.6, NdiVirtualInput 1.0 from NDI Tools 4.5

Has anyone else been able to get the NDI Virtual Input application to work correctly on macOS?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Networking for NDI

Par : MartyATS — 19 mai 2020 à 20:20
I.T. is asking for a network administrator's document for NDI. Does anything exist that better than the KB articles?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

OSX Video Monitor Tabs/Multiview

Par : timboxyz — 18 mai 2020 à 16:05
OSX Video Monitor has a View option to show the tab bar and one to show all tabs. However I can find no way to add tabs and therefore "show all" is greyed out.
I am therefore wondering how to add tabs, or alternatively launch multiple copies of the Monitor. Trying to launch a second copy only directs you to the already open one.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Scan Converter Duplicating Streams (OBS or NDI problem?)

Par : 4xStreamer — 17 mai 2020 à 19:16
I am using scan converter to send video to a capture computer. In the OBS scene collection there are multiple references to the same source. It seems each reference is using individual streams from scan converter, each about 150Mb. The number of references I have is causing my network link to DDoS, because scan converter is going over the capacity of the GbE link. It occasionally shows it using 900Mb+. Is this an OBS or NDI problem? If the same source is being requested, shouldn't NDI send it a reference?
☑ ☆ ✇ NewTek Discussions - General NDI Discussions

How to overlay NDI stream with alpha channel

Par : Adrian Cho — 17 mai 2020 à 04:38
Can anyone advise how I can overlay an NDI stream with animated graphics onto an existing video signal? I know I can do this in software using something like OBS but would prefer a hardware solution. I know there are hardware NDI to HDMI or SDI converters but I’d still have to get the overlay to happen and I’m also not sure whether this would require having the NDI output split into separate key and fill feeds. Thanks.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI transmit replacement

Par : Goglplx — 12 mai 2020 à 06:23
So how does one do this without NDI Transmit?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Is AVX used at all for NDI decoding?

Par : paulreimer — 11 mai 2020 à 22:52
For dedicated NDI receiver PCs, I would like to make sure I am buying CPUs with the optimal feature set for NDI decoding, but I'd also like them to be as cheap as possible since I'll be using a lot of them.

So my question is:
Is x86 AVX acceleration used at all, for pure decoding applications? The monitor apps appear to work on older CPUs with only SSE3 support. (Some other NDI apps just crash immediately if AVX is not supported by the CPU).

When AVX is not available but an NDI app still runs, is it still decoding optimally? I don't want to leave any performance on the table, but I am also interested in pursuing the smallest/cheapest dedicated receiver PCs.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Feature Request to Zoom on NDI integration

Par : trustmeican — 9 mai 2020 à 09:20
Just to let users of NDI and Zoom know, there is a feature request to Zoom on its native NDI integration on the Zoom Developer Forum. If you find this feature may be helpful to you, please upvote it and provide some comments there

(If there are any NewTek engineers here, can you please reach out to Zoom on suggesting such integration as well? It would be amazing if Zoom can implement NDI as like, or more than, Skype does.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

New to NDI on iPhone

Par : Phaetos — 8 mai 2020 à 23:55
I recently found Newtek NDI for using my iPhone as a webcam in OBS and it works great, except for the delay, but oh well. I have a question on it's use though. Sometimes the frame on the screen is Red, sometimes it's Blue. What do those colors indicate?
☑ ☆ ✇ NewTek Discussions - General NDI Discussions

Is it possible to use NDI HX to connect an iPhone to a PC by cable?

Par : Thresher — 8 mai 2020 à 02:49

I'm a newbie to NDI HX. I downloaded it to try to use an old iPhone 6 as a webcam with my Win 10 PC (older Dell with Intel i5).

After much trial and error I was successful in using the phone as a webcam with Google Meet. The issue is there is significant lag between the audio and the video; the latter is way behind.

I am sure the issue is related to my network setup: the iPhone is using WiFi to connect to my home LAN, while my PC is connected via Ethernet. The PC does not have WiFi capability.

When I turn off WiFi on the phone, and connect it to the PC via a Lightning to USB cable it no longer works. The PC still sees the drivers, and the NDI app on the phone still runs, but they do not communicate.

Is there a way to connect the iPhone directly to the PC and still have NDI HX function? I am hoping that if I can do this, I will lose the lag.

Thanks in advance for your assistance.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI Working on one Machine but not the other.

Par : KittenTakara — 6 mai 2020 à 08:38

I am really at loss with how to proceed here, so asking for a little help as it beyond my ability to find a solution.

My setup is machine One with AMD 2600x CPU, 16g Ram and, Radeon 580 GPU.

Machine Two is AMD 3700x Cpu, 32g Ram and Nvidia 1080ti GPU.

I am trying to stream from one PC to another, I have Cat 6 cabling with a non managed switch between them. They can log into each other and see each other on the network and ping each other. Both are Running Windows 10, and I have installed NDI runtime and NDI Tool kit on both and Restarted both machines many times in install.

Here is weird thing, I am using Virtual Input and Scan Converter, When I run Scan Converter on Machine Two it works and I can see it on the Virtual Input on both Machine One and Machine Two, but when I run Scan Converter on Machine One, I cannot see it either Machines Virtual Input. So it can't even see it's self running on the machine, Which has me utterly confused. I have checked the firewall and Anti virus/Malware settings, and disabled them all to see if that was problem which it was not. I have created exactly the same firewall rules for Machine One has I have for Machine Two. I have uninstalled and Reinstalled Tools and Runtime Serval times, Restarted many times and tried everything i can think of. I have disabled my Router Firewall just incase to check but nothing seems to fix the problem.

I am really confused to what is causing the problem and why Machine Two works perfectly fine to Machine One, but Machine One won't work at all and I have done nothing different. My thoughts are its something to with GPU? All my drivers are up to date, including motherboard, GPU and Windows and using the latest version of both Tools and Runtime, Does anyone have any suggestions to why its not working? or workarounds I can do? thanks
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

HELP! - NDI TOOLS for Streaming/Twitch

Par : PickleNinja — 2 mai 2020 à 22:04
I have a 2 PC setup using NDI tools to stream my games etc.

Issue : It seems that after a period of time after streaming music etc letting it sit, when I check my stream it has started to skip or sound freezes or all freezes. So when I go back to my main gaming PC and close out NDI tools and re open it, it will reset everything and start working again smoothly.

Is there something I am doing wrong or is there a fix for this so I can trust and leave my computer and not have to worry about keep checking & closing out the NDI tool & restarting it?

My set up is like below :

1. PC 1 Gaming PC - I open NDI tools on this computer.(Pics added)
2. PC 2 Streaming PC - This is where I am running Streamlabs to capture my gaming or streaming on. I typically do not open NDI tools on this one as it works without having to open it but I have it installed on this PC as I was instructed.
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☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI Test Patterns

Par : maniacpony — 30 avril 2020 à 10:03
Using the NDI Test pattern generator in NDI Tools creates a 1080 test signal at 29.97fps. Can the output be forced to 10808i50, PAl or other settings for UK workflow use? There's no controls in the app.

☐ ☆ ✇ NewTek Discussions - General NDI Discussions

NDI over Wan

Par : maniacpony — 30 avril 2020 à 09:55
Hi All,
Newbie question - Just getting started with NDI, although can't get very far working from home(!), so mostly theoretical up to now. I'm aware of tools such as Sienna Cloud for NDI for NDI over a public network, and appreciate how useful this is. However, in a basic setup, where you may have the odd remote source on a different subnet or an external connection, what's to stop you just using NDI Access Manager to manually add the IP address of the remote device?

For example if have a remote rooftop camera for a skyline view on top of another building, so want to bring in an NDI HX feed from a different subnet. This would have a fixed IP, and can ask IT to unblock any required ports.

If I had a similar single source from an external IP address (NDI or NDI HX), again assuming I'm not concerned about DHCP IP Addresses possibly changing, can this be manually added via Access Manager as well?

☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Can't read video file recorder with Studio Monitor

Par : acasabon — 30 avril 2020 à 01:34
Hello, it used to work fine, but now, on two different computers, If I record with studio monitor, no matter the source (tried a camera on a Decklink, Scan converter, etc), I can't play the file with anything.

1st. Is there some kind of recovery tool?
2nd. Any idea?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Can I take a backup session from my 410 and use it on a TC1?

Par : photogguy — 29 avril 2020 à 21:43
Can I take a backup session from my 410 and use it on a TC1?
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Ndi & aws

Par : jvphobic — 29 avril 2020 à 08:19
AWS doesn't support multicasting in their VPCs (private networks). I would love to know if there is another way we can get NDI working between 2 PCs in my AWS VPC. I would like to virtualize my LiveU setup with Vmix PCs.

Any thoughts or suggestions would be great.
☐ ☆ ✇ NewTek Discussions - General NDI Discussions

Scan Converter 4.5 not working in Windows10

Par : DA_NDIuser — 28 avril 2020 à 14:31
On one of our PCs (i3 intel 2.10gHz graphics 3000) Scan converter 4.5 stopped working, it was working in previous versions and in this release too, but without any warning it just stopped appearing as discoverable. Test Patterns works perfectly on the same machine.

By the way this computer has dual graphics (one is inactive) but it was working before.

Can you please help me?