MHS_2003 The initialization error is related to broken permissions: the game can't access the user folder. I see from your screenshots that OneDrive has tried and failed to sync your data, so that may be the problem, as in, OneDrive may be locking up the user folder. So try the OneDrive-related suggestion here:
[CURRENT ISSUE] Sims 4 already running | EA Forums - 11818313
If that doesn't help, try the antivirus-related suggestion, then the others. The "already running" error is distinct but shares most of the same underlying causes with the initialization error.
Thank you so much for telling me about the one drive thing, turned it off, and the game started!! But it then crashed so I will try the antivirus thing,
hopefully it ends up working because formatting my laptop just to play sims will genuinely put me off from ever playing the game :)
edit to add: for some reason, I do not have the virus protection thing… so yeah that sucks.
