Re: Sims 4 will not launch on EA app
@alienhusband That error is related to OneDrive. Try pausing syncing: right-click the cloud icon in the lower-right corner of the screen.
@xdiscodelightx and @cutiefulsims If you've tried the clean user folder, described in post 2, and it didn't help, please provide a dxdiag.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/