failed to connect (connection banned)

i just started playing this game last night with my 3 friends and am really loving it but this morning i try to log in,i get in game on our server and am just playing pick up rocks and stuff and i get kicked form the server and after i try to rejoin it says failed to connect (connection banned) and this happens every time i try to join our server.....

this is really really annoying, i havent cheated i dont even know how to cheat, so was i banned for no reason or is it some mistake somewhere? and how do i fix this asap? my name in game is imran.chintan idk what other info you need