DB/Misc: Fix a runtime error

By Killyana, updates #14730

sql/updates/world/2015_07_01_00_world.sql

@@ -0,0 +1,8 @@
+--
+UPDATE `creature_template` SET `trainer_type`=2 WHERE `entry` IN (33996);
+DELETE FROM `npc_trainer` WHERE `ID`=33996;
+INSERT INTO `npc_trainer` (`ID`, `SpellID`, `MoneyCost`, `ReqSkillLine`, `ReqSkillRank`, `ReqLevel`) VALUES
+(33996, 2373, 500, 182, 50, 0),
+(33996, 3571, 5000, 182, 125, 10),
+(33996, 11994, 50000, 182, 200, 25),
+(33996, 2372, 10, 0, 0, 0);