[MANGOS]Need help!!

how do i fix this???



ERROR:Quest 10853 has `RewSpell` = 38788 but spell 38788 doesn't exist, quest will not have a spell reward.
2007-06-26 10:00:18 ERROR:Quest 10439 has `RewRepFaction1` = 233 but raw faction (faction.dbc) 233 doesn't exist, quest will not reward reputation for this faction.
2007-06-26 10:00:18 ERROR:Quest 10721 has `RewSpell` = 38406 but spell 38406 doesn't exist, quest will not have a spell reward.
2007-06-26 10:00:18 ERROR:Quest 10850 has `RewSpell` = 38758 but spell 38758 doesn't exist, quest will not have a spell reward.
2007-06-26 10:00:18 ERROR:Quest 10830 has `RewSpell` = 38665 but spell 38665 doesn't exist, quest will not have a spell reward.
2007-06-26 10:00:18 >> Loaded 198 quest relations from gameobject_involvedrelation
2007-06-26 10:00:19 ERROR:Table creature_questrelation: Quest 10894 listed for entry 22007 not exist.
2007-06-26 10:00:19
2007-06-26 10:00:19 >> Loaded 4825 quest relations from creature_questrelation
2007-06-26 10:00:19 ERROR:Table creature_involvedrelation: Quest 10894 listed for entry 22386 not exist.

pls help me if you can! :P