Sims 3 won't launch due to Origin error

I recently tried to re-install my old Sims 3 base game + 10 EP's from their original discs. The install worked, but trying to launch the game came up with this error

I tried to contact support, who suggested I unintall and re-install the games directly through the EA app with no disc. I used the serial codes to get all the games onto my EA app and re-installed them through there, but pressing Play still re-directs me to the Sims 3 Game Launcher with the same origin error message. 

As far as I understand, installing origin is no longer an option on Windows 11, so what else can I do?

I've tried to repair the games as well with no success