oh I know.. u guys forgot to put Sorcerer Sample, Druid Sample, Paladin Sample, Knight Sample.
Go to ur page and get into the admin panel. Then go to Load Vocations, next to Sorcerer, Druid, Paladin, Knight, theres another blank square. Write Sorcerer Sample, Druid Sample, Paladin Sample, Knight Sample and check mark all of them 4 and hit save.