Failed to launch error when using CC

I am still getting a no-launch error, where the sims 4 will not launch. Trying to 50/50 is not working because sometimes adding files in causes it to stop working, and other times it doesn't. This inconsistency means I don't know what is causing my game not to launch, and it is still not resolved for me. 

what the flip and what the heck!! ive updated my sims removed adult mods and UI ive repaired the game 3 times and now all i get is an error message wont even load up my game im becoming really annoyed at this point

My game launched after three failed attempts. It seems to work now.

Are you kidding me? Yesterday at least my game was opening, but today it won’t even launch. How is this supposed to be a solution? Am I really the only one experiencing this? It’s honestly impossible not to lose your mind over this. I can barely even force close the game because the screen completely freezes and nothing responds.

Same. This is a nightmare, the fix is worse than the issue it was supposed to fix 😭

Literally... it says an error on their end, try again later....like bro. I'm already pissed off because 18 hours for THIS?

A message pops up that says "An error on our end caused the launch to fail. Try again a little later."

I saw a notification come up for this update a few minutes ago, but now I am not even able to launch the game after updating.

updated and now my game wont even start

I have the same issue...my game loads for a couple seconds and then it redirects me to the EA App and says there has benn an error in the EA App.

I already tried to repair the game, the EA App and cleared the cache from both...