Game loads but has an error shortly before getting into the map

In my attached file you can see that an error occurs when I try to launch a game on a map, The loading process is almost done but then the error occurs.

I've got this problem for a while now, almost immediately after the A20 release (1 1/2 years).

I've tried deinstalling the game many times and look everywhere but couldn't fix it.

If you know anything helpful let me know ! Everything is much appreciated, thanks !