Crash in Multiplayer

Whenevr I play Garry’s Mod in single player mode, it works just perfectly, but in multiplayer mode, whenever I join a aserver, it lets me download the files, but when I actually get on a server and spawn the game freezes, and something pops up, all I remember it saying is to press OKAY to terminate the program.

Any help on this, cuz I definitely want to play multiplayer.

Do you have any addons? Sometimes certain addons can cause the game to freeze on multiplayer as the addons are still loaded, even though they are not used

I didn’t have any addons the first few times it happened, then I just added addons to play single player, right now I’m reinstalling it to see if that’d make a difference