No Sound-Screen stuck

Well, I was cleaning out my Gmod because i downloaded a bunch of Shit-ons they were slowing it down. So i go cleaning it and i delete some files. After i am done i go into Gmod and There is Completely no sound and when i go in to my toolgun and edit numbers and when i press Q the Spawnmenu/Toolgun selection won’t dissappear. This is really beginning to piss me off. You anyone lend a hand on this?