merielol Please try a completely new user folder. Move the entire Sims 4 folder out of Documents > Electronic Arts and onto your desktop. When you launch the game, a clean folder will spawn with no content. (Your saves and other content will be intact in the folder you've moved but temporarily unread by the game.) Don't add anything to the new folder yet; just start a new save and see whether you can get into live mode. If so, please try to save your progress.
You don't need to spend much time creating the sims since this is just for testing.
If you get an error code again, please post a screenshot.