Error searching YouTube
In some rare cases, you may get an error like this:
Error searching YouTube: Project XYZ is not found and cannot be
used for API calls. (Your users will not see this notice)
used for API calls. (Your users will not see this notice)
Usually, this happens for some unknown reason, and the video should be added to your product post 24 hours after the last failed attempt (the app will try to fix this automatically, every 24 hours.).
That said, make sure you don't share your Google API Key with others, as it could result in your key getting disabled.