bellasml Hello! Sorry you're having trouble with this. There was an earlier update, in August, that caused this issue for a lot of players. It is primarily mod-related. So if you have mods, it would be best to test the game without them.
Some players who do not use mods also had this issue, so for more information about the issues with loading, please see this thread...
https://forums.ea.com/idea/the-sims-4-bug-reports-en/start-here-crashingback-to-mapendless-loading-patch-117-221/12512130
For instructions on how to test mods, please see this thread...
https://forums.ea.com/discussions/the-sims-4-mods-and-custom-content-en/info-how-to-use-mods-and-cc/9360653/replies/9360660
EDIT: I'm getting an error when trying to create links to the URLs so please copy and paste them into a new tab or browser instance.