Did you tested it?
oh yeah, sorry for not responding, was busy with something. Didn't really fix it. Oh well, still works regardless.
Just add this info for people with Sierra/Catalina (I have a friend who has Big Sur but he didn't have a problem clicking on the app)
- right click app and click "show package contents"
-Go to Contents > MacOS
- Click file named rexuiz-dprm-sdl