stuck on loading screen

hyunjinsss  Please try loading a new save (click New Game) and see whether it works.  If it doesn't, please move the Sims 4 folder out of Documents > Electronic Arts, as discussed earlier, and try again to load a new save.  This will remove, but not delete, your old saves and other user content.  You can restore it later, when the game is working again.

If the new save does load fine, please open Documents > Electronic Arts > The Sims 4 and delete any files with lastexception in their name.  Try again to load a household in your main save.  When it doesn't work, close the game and look for a new lastexception file.  If you find one, open it (Notepad is fine), delete the first line of text, and then attach the file to a reply here using the Attachment (paper clip icon) button included with the other formatting options.