Check their class number in the characters_ table. Maybe you switched 13 to 40 by mistake somehow.
Code:
1 Warrior
2 Cleric
3 Paladin
4 Ranger
5 Shadow Knight
6 Druid
7 Monk
8 Bard
9 Rogue
10 Shaman
11 Necromancer
12 Wizard
13 Magician
14 Enchanter
15 Beastlord
16 Berserker
20 GM Warrior
21 GM Cleric
22 GM Paladin
23 GM Ranger
24 GM Shadow Knight
25 GM Druid
26 GM Monk
27 GM Bard
28 GM Rogue
29 GM Shaman
30 GM Necromancer
31 GM Wizard
32 GM Magician
33 GM Enchanter
34 GM Beastlord
35 GM Berserker
40 Banker
41 Shopkeeper
60 Adventure Recruiter
61 Adventure Merchant
63 Tribute Master
Threaded Mode
