On my Bukkit server, none of my players are gaining any McMMO XP in any skills. I'm OP and an admin rank (With all perms) and I also gain no XP. Also, on my alt I gain no XP, even though I'm the same rank as everyone else. Help would be very much appreciated. --Zup
Maybe your max level in mcmmo is set to 0. Also, make sure your mcmmo is updated to the latest version, same with craftbukkit.