Well if it showing 'You are banned from this server"
Then dont wry ur not baned it's just a bug just refresh the server and if still persists un-install ur sa-mp and re-install it !!
But if it is showing "YG-INFO : Player Bilal (ID:%) has been automatically kicked from the server (Reason : Ban Evader )"
Then u r rly baned
Which one does it show?!