How to fix Trevor Henderson creatures tried to use a null entity

[seanb2018]

I wanted to use the Trevor Henderson creatures but when they killed me it said there was a script error and it said tried to use a null entity can someone please tell me how to fix this

[Isra_17]

Try redownloading both the NPC base and the NPC itself

[seanb2018]

it didn't work :( also i think its the npcs executions that cause the error

[Ba5*]

Try disabling Bio Annihilation 2 because there's a death initiation process where the animations are copy and pasted onto NPC's and that can conflict with Nextbots or normal NPC's since some may use animations but the BA2 overrides the animation, causing a null entity due to combination of zombie death and decapitation.

[goblin]

Trying to use a "null" entity means that it tried to use an entity that is removed, or not there. If the npc is the GIANT fire monster (i forgot it's name) the script is bugged on that, so that may be why, also some npc addons make that happen.