Cant kill moder, always stuck at 0 hp

Tried devcommands, Dont know what mod i have too many installed

[Error : Unity Log] NullReferenceException: Object reference not set to an instance of an object
Stack trace:
StarBoss.DragonEvents.Event1Condition () (at <826d9390c3654127b448da307d86a61d>:0)
StarBoss.UnitEvent+<>c.<ExecuteAsync>b__18_0 (System.Func`1[TResult] x) (at <826d9390c3654127b448da307d86a61d>:0)
System.Linq.Enumerable+SelectListIterator`2[TSource,TResult].MoveNext () (at <351e49e2a5bf4fd6beabb458ce2255f3>:0)
System.Linq.Enumerable.Any[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) (at <351e49e2a5bf4fd6beabb458ce2255f3>:0)
StarBoss.UnitEvent.ExecuteAsync (Character character, System.Boolean checkConditions) (at <826d9390c3654127b448da307d86a61d>:0)
StarBoss.UnitEvent.OnUnitDied (System.Object sender, System.EventArgs e) (at <826d9390c3654127b448da307d86a61d>:0)
StarBoss.Patchers.UnitDiedPatch.Prefix (Character& __instance) (at <826d9390c3654127b448da307d86a61d>:0)
(wrapper dynamic-method) Character.DMD<Character::OnDeath>(Character)
(wrapper dynamic-method) Character.DMD<Character::CheckDeath>(Character)
(wrapper dynamic-method) Character.DMD<Character::FixedUpdate>(Character)
Humanoid.FixedUpdate () (at <64e3050735a54dbb8762d6e3432a1162>:0)