this profile is not permitted to play online

one day it lets me login and the other it wont even login after i try everything. when i first reinstall the game after a long time not playing it, i can login like usual. then on the 2nd or 3rd day this bug started, at first a simple steam restart did the job, then it wont let me login when restart steam so i need to restart my whole pc, then restart pc stop working too but verifying file from steam did the job, and now it wont let me login no matter what i do. 
i checked if im banned but im not. its annoying cause the other day u can play and then now it wont even let u login at all