@M4GIC_MICHI A huge number of mods have been updated since November, but unfortunately, that doesn't mean all the ones that Curseforge controls were updated. Plus any you didn't install through the Curseforge app need to be updated manually.
You have a couple of options.
1. You can use the 50-50 method to find what's stopping you from opening the game: 50-50 . Then find out if an update is available for that mod. If not, delete it. If so, delete the old version and add the new version. Either way, remember to keep deleting the file called localthumbcache when you're testing, deleting, and updating.
2. You can start instead at the Broken/Updated mods lists. This gets complicated when there have been multiple patches, two of them with long lists. However, you could probably find most issues from the "Broken" and "Updated" lists in the current pinned post: https://answers.ea.com/t5/Mods-CC-Issues/Broken-Obsolete-and-Updated-Sims-4-Mods-1-106-Apr-16-2024-Game/td-p/13649658 and the previous, very long "Updated" list in the previous one: 1.105 Broken/Updated Mods & CC thread
