[CURRENT ISSUE] Sims 4 Unable to Start, Game Data Missing or Damaged

I was playing just fine today, logged off, deleted a few CCs, then tried starting the game a few hours later, and it just gave me an error message saying that it can't start because data is missing. All I did was delete a few minor CCs. It said to try repairing the game. I did that but I still get the error message. Does anyone have any idea how to fix this issue? Thanks.