I have some BattleGroundEvent errors, but whitout "map = 30".
BattleGroundEvent: missing db-data for map:562, event1:253, event2:0 ("buffs")
BattleGroundEvent: missing db-data for map:559, event1:253, event2:0 ("buffs")
BattleGroundEvent: missing db-data for map:572, event1:253, event2:0 ("buffs")
BattleGroundEvent: gameobject with nonexistent guid 90107 for event: map:0, event1:253, event2:0 ("(null)")
BattleGroundEvent: gameobject with nonexistent guid 90108 for event: map:0, event1:253, event2:0 ("(null)")
BattleGroundEvent: gameobject with nonexistent guid 90114 for event: map:0, event1:253, event2:0 ("(null)")
BattleGroundEvent: gameobject with nonexistent guid 90113 for event: map:0, event1:253, event2:0 ("(null)")
BattleGroundEvent: gameobject with nonexistent guid 90118 for event: map:0, event1:253, event2:0 ("(null)")
BattleGroundEvent: gameobject with nonexistent guid 90117 for event: map:0, event1:253, event2:0 ("(null)")
And that all.