I bought the plugin from the official Video Copilot site. Now when I put Twitch in the After Effects plugin file it won't show up in After Effects. It keep saying that the Plugin is missing. I tried it multiple times but its always the same. I hope someone can help with this problem
I really have no advice other than to look again. This sounds like you simply downloaded the wrong version and may need to give it another whirl. VC only recently have updated their plug-ins (two weeks ago or so) for AE 22.x on Macs, so if you downloaded earlier, you may still have the wrong version.
I've been having the same problem too. On the Video Copilot site it says Twitch currently only works on the Rosetta version of AE on M1s, but currently I can't get Twitch to work on either version on M1. I have to keep switching back to my old PC to whenever I need to use Twitch (which is a regular go-to on a lot of my jobs).
Thus far I'm really regretting switching to M1 / Mac in general. The slow pace of companies updating their programs and plugins (or just outright having to buy plugins all over again) is extremely frustrating.
Sorry I couldn't be more use but if I manage to get Twitch working any time soon I'll get back in touch with a solution for you,