Window keeps popping up saying that Sims 4 won't respond

I think this might help:

"They have fixed the issue and that fix is available in the new Origin beta update.

To get Origin Beta, please follow these steps (credits: EA_Kristi)

1. Go to Origin menu (top left corner of the client), Application Settings and General
2. Tick the 'Update to the beta version when available' option
3. Exit Origin client and restart
4. Download and install the prompted update

I'm locking this thread since there are already enough threads on the issue. You can continue here if you have further issues: http://answers.ea.com/t5/The-Sims-4/INFO-REQUEST-Sims-4-starting-in-small-window-Not-starting/td-p/4..."

Source: http://answers.ea.com/t5/The-Sims-4/The-Sims-4-not-responding-after-origin-update/m-p/4439161#M36518

also found this:
http://answers.ea.com/t5/The-Sims-4/Sims-4-Not-responding-at-launch/m-p/3552457#M13788

Thank you, but I followed the steps and I was not prompted...I don't know if it has to do with custom content or if it is a problem with origin or with the game....I don't have a lot of custom content but do you think I should delete it?

Thank you so much this totally worked!! you are a lifesaver! hehe