Random crashes

My game recently started randomly crashing. When I crash, I get completely no errors. Before crash, game freezes, then I hear sound for couple seconds and freeze completely. When I opened dump crash file, it showed me 0x0000005 error, I Googled it, and it said it’s some kind of ram error, but everything was perfect couple months ago. I tried verifying game cache, reinstalling it, updating my drivers and nothing. GMod discussions are no luck there when in need of help, just random kids spammers. Maybe you could help me?

these kind of kids http://prntscr.com/eaf6u3