are u on windows
anyway, try deleting the whole Gazo Tuber folder here:
"C:\Users\your username\AppData\Roaming\Godot\app_userdata\Gazō Tuber".
After that, try downloading it again. If it doesn't work, delete the whole Gazo Tuber again and download the alt version from here:
https://drive.google.com/file/d/1Q3DYWcw-rfl1D3Th2O6FRr7cYZoZ0gkD/view?usp=share...
So I believe I've figured out the problem. I had the same issue with my mic not connecting at all but I realized this is only a problem when I was using my default output (which were my headphones). when I went into my windows settings then app sound preferences and switch the application's output to my speakers it was solved. So I guess make sure the output for the application is anything other then default and it should be fixed.