u can also try clearing the ableton plugin cache as I heard it works from other people
Viewing post in Cogg (Free Effects Plugin) comments
I tried everything. It has a compatibility issue with Catalina 10.15 intel. I just helped an independent developers with the same issue. He is modifying his plugin suite today to lower than OS 11.0 requirement. It happens often these days. Developers aren't aware when they have newer machines. Most are willing and able to revise, once they're aware. Let me know if figure it out. The plugin looks very interesting. - Rob