Facepalm connector cancelled

Hello, when I connect to a public server tells me in red: Facepunch connector canceled and when I try to connect to one official tells me in red Facepunch connector VAC banned, as if I had been banned but I have not used any cheat ever or anything, anyone can help me? thanks!

Facepalm

Nobody on this forum can help you with VAC bans, go lie to Steam Support about how your cousin stole your account and installed hacks on it after you got up to eat a sandwich. We’ve heard it all before.

Before you think I’m joking, the only two groups of people on the planet that reverse VAC bans are Steam Support and the VAC team itself.