Can't click on anything in sims

A few days ago my sims game started doing this thing where after around 30 mins of playing, it glitches and I can't press anything on the screen but I can press on build mode, menu and notifications. I can't switch to play as another sim in the household bc when I press on it it does nothing.  When I press on objects nothing happens. I can't save the game when it happens bc I try and the save screen just loads forever, also I can't pause the game. When I press the pause button it says it's paused but my sims are still moving (not actually carrying out tasks, just turning their heads and swaying etc.) I've tried repairing the game through origin, deleting options.ini, localthumbcache and even removed all my script mods yet still nothing works. Can somebody help or have any idea why this is happening? Thankyou!