Getting these on my log occasionally, and it's always from the same trigger/monkey pair. All other monkey traps are silent. This strongly suggests a trap setup issue:
[06/02/2018 - 03:55:17PM] error: (00218FC8): the animation graph (TRAP) cannot currently process event "Arm".
stack:
[ (00218FC8)].ObjectReference.PlayAnimation() - "<native>" Line ?
[ (00218FC7)].TrapMonkeyTriggerScript.warn.OnBeginState() - "C:\Users\Samson\AppData\Local\Temp\PapyrusTemp\TrapMonkeyTriggerScript.psc" Line 166
[ (00218FC7)].TrapMonkeyTriggerScript.GotoState() - "" Line 42
[ (00218FC7)].TrapMonkeyTriggerScript.active.OnAnimationEvent() - "C:\Users\Samson\AppData\Local\Temp\PapyrusTemp\TrapMonkeyTriggerScript.psc" Line ?
[06/02/2018 - 03:55:17PM] error: (00218FC8): the animation graph (TRAP) cannot currently process event "set".
stack:
[ (00218FC8)].ObjectReference.PlayAnimation() - "<native>" Line ?
[ (00218FC7)].TrapMonkeyTriggerScript.active.OnBeginState() - "C:\Users\Samson\AppData\Local\Temp\PapyrusTemp\TrapMonkeyTriggerScript.psc" Line ?
[ (00218FC7)].TrapMonkeyTriggerScript.GotoState() - "" Line 42
[ (00218FC7)].TrapMonkeyTriggerScript.warn.OnAnimationEvent() - "C:\Users\Samson\AppData\Local\Temp\PapyrusTemp\TrapMonkeyTriggerScript.psc" Line ?
Note: 00218FC7 is the trigger, while 00218FC8 is the monkey.