Bot don't attack boss

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Hey Titanium... i don't understand what happened... bot was killing skeleton king and suddenly stops attack... when i open the log, i saw that:

Quote:2014-10-29 08:29:18 Executing While, HasQuest(361234)
2014-10-29 08:29:18 Executing MoveToActor, 1, 2
2014-10-29 08:29:19 RealUseObject Cannot find actor with SNO ID 5354
2014-10-29 08:29:19 Executing WaitTimer, 1, 2
2014-10-29 08:29:19 skipping monster SkeletonKing-14498 as it's difficult to attack
2014-10-29 08:29:19 skipping monster SkeletonKing-14498 as it's difficult to attack

Which build should i use to make this bugs don't happen?