Run these queries, and your problems will be fixed.
Code:
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for professiondiscoveries
-- ----------------------------
CREATE TABLE `professiondiscoveries` (
`SpellId` int(10) unsigned NOT NULL default '0',
`SpellToDiscover` int(10) unsigned NOT NULL default '0',
`SkillValue` int(10) unsigned NOT NULL default '0',
`Chance` float NOT NULL default '0',
PRIMARY KEY (`SpellId`,`SpellToDiscover`)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;
Code:
ALTER TABLE `instance_bosses` CHANGE COLUMN `creatureid` `spawnid` INT(11) UNSIGNED NOT NULL DEFAULT '0';