I've added a NULL Pointer check to the vanilla code to prevent server crashes. More specifically I've added NULL pointer checks on the variables ctx, state, and m_fsm in the modules weapon_base.c and weaponfsm.c. I've published this as a workshop item WeaponFSM Fix . Keep in mind this hardcodes these two modules with 1.27 code so it may break when 1.28 is released. Please remember to remove this mod when 1.28 is released.