For some reason I can't even log into a character for SP anymore, because a pop up shows up out of the game saying an error occurred. It was error 126 with d2.game.dll or something. I backed up the character files and uninstalled the game and now GoMule doesn't even work for me. I'm not a computer connoisseur or anything, so I don't really know my way around to fixing things like this.
I feel like just quitting D2 for good instead and focus on RL.