So, if the scenario is applicable, you just need to enable Virtual Camera on OBS Studio ... to fix the issue is to reinstall the OBS Studio app. The installation of OBS Studio might have gone ...

First, download OBS and install it on your computer ... select the I will only be using the virtual camera option. It's just quicker to start using the app this way. Now that OBS is set up ...

OBS Studio 29.1 Beta has been released with ... [notr1ch] This blocks old versions of popular VTubing software virtual cameras that are known to cause freezes when accessing video capture device ...