Ah that error, sorry that's happening, shouldn't be a thing anymore with A22.
So, open the game launcher (from Steam with Show Game Launcher, or go to the main game folder and launch the 7dLauncher.exe in there. Then, click the Tools tab, click Open Settings, and delete the folder that the registry editor opens up to:
That should cover it. It will delete your settings and any custom profiles, but that wouldn't affect your saved games (just make sure Persistent Profiles is set to off before loading into a game)