Sims 4 has an epilepsy warning

I am having an issue where my mods aren't showing up in game or on the mods list so I thought that putting +mods in the command line arguments in the advanced launch options of the Sims 4 on origin for some reason would solve the problem. It caused an error and I think it caused the epilepsy warning I have. I tried repairing the game a few times but it didn't work. I can't play the Sims 4. I don't know what to do. Should I reinstall the Sims 4? What's the CD key for?