wwhjfoc6bs4i hey there, what platform are you on please? We've got tech support for PC, Mac and Console in the Sims 4 index. Here are the links for you:
The Sims 4 Technical Issues - PC | EA Forums
The Sims 4 Technical Issues - Mac | EA Forums
The Sims 4 Technical Issues - Consoles | EA Forums
Once you find the right tech support link for your platform, take a look at the posts at the top of the page with troubleshooting advice. So for example if you're on PC there's a post pinned at the top about a current issue with the game failing to launch. Good luck!