issue with pve flame damage and incendiary  bullets

i have the mod jet event with that mod a jet crashed and there is boxes on fire but player receives no damage from flames also cant kill the npc in event with incendiary  bullets as shows pve warning can kill them with all other types of bullets 

Hey, can you confirm this? Also, I do not see any support or API for their NPCs if they used custom like ZombieNPC

Try removing the config file and reload the plugin that might reset any error which might cause the incendiary damage