mods/ENTITIES/mcl_mobs/api.lua

@@ -276,10 +276,13 @@ end
 local get_velocity = function(self)
 
 	local v = self.object:get_velocity()
-
+	if v then
 		return (v.x * v.x + v.z * v.z) ^ 0.5
 	end
 
+	return 0
+end
+
 
 -- set and return valid yaw
 local set_yaw = function(self, yaw, delay)