LAUNCHER Mac - help

Good evening, I’m a long-time Twinmotion user, and I’ve always updated it as far as my machine allowed (MAC). Today I’m using macOS Big Sur 11.7.8 and Twinmotion version 2020.2.
The Epic Games Launcher always worked for me, but suddenly it no longer opens and says it needs to be reinstalled… I reinstalled it, but now it says it’s not compatible with my macOS!!! I’ve been using it for so many years, and suddenly my launcher is gone??? My updates and library??? What do I do? I’m desperately lost.