It's a game ban; cheats aren't necessary for that, and bans are issued after a delay, so it doesn't matter if you were online during the time you specified.

Ban in a Valve game: Permanent and cannot be removed.
Ban in a non-Valve game: Contact their support.

я читер не был !!!!!!!!!!!!!!

引用自 ye7ya King：

i got vac ban for no reason and my pc was off for week and half can you help please? i didnt do anything.

1 game ban on record | Info
5 day(s) since last ban

Bans are delayed and as per your profile, you have a gameban, irrelevant what it says ingame. FYI this is a community only forum