idk how i got ban

1. Your name: .::~n0t~N!ke~::.
2. Your steamid: STEAM_1 : 0 : 2136790003
3. Ban Details(you can get it from console): 
[AMXBans] ===============================================

[AMXBans] You have been banned from this Server by Admin Supreme.

[AMXBans] There are 23 hours , 4 minutes and 35 seconds left of your ban.

[AMXBans] Banned Nickname : . : : ~n0t~N!ke~ : : .

[AMXBans] Reason : ' CAMPING'

[AMXBans] You can complain about your ban @ www.csgamers.tk

[AMXBans] Your SteamID : ' STEAM_1 : 0 : 2136790003 '

[AMXBans] Your IP : ' 154.176.222.160 '
[AMXBans] ========================================

4. Proof (demo or screenshot):
idk  how i got ban but this last demo in sv 
https://mediafiles.me/fb35a095216dc819/[CSGAMERS]_Umbrella_Swarm.dem