| Script Fatal Error 
 
				I need some help with this, I'm new so I don't know what's wrong.Whenever I start up my custom story I get this error message:
 
 FATAL ERROR: Could not load script file 'custom_stories/Map Test 3/maps/test.hps'!
 main (4,2) : ERR : No matching signatures to
 'AddUseItemCallBack(string@&, string@&, string@&, string@&, const bool)'
 main (5,2) : ERR : No matching signatures to
 'AddUseItemCallBack(string@&, string@&, string@&, string@&, const bool)'
 main(27,22) : ERR : Expected')' or ','
 
 This is what I have gotten so far:
 
 
 void OnStart()
 {
 SetLocalVarInt("DoorLocked", 1);
 AddUseItemCallBack("", "key_laboratory_1", "level_wood_1", "UsedKeyOnDoor", true);
 AddUseItemCallBack("", "key_tomb_1", "mansion_2", "UsedKeyOnDoor2", true);
 SetEntityPlayerInteractCallback("mansion_2", "UsedKeyOnDoor3", false);
 }
 
 void OnEnter()
 {
 
 }
 
 void OnLeave()
 {
 
 }
 
 void UsedKeyOnDoor(string &in asitem, string &in asdoor)
 {
 SetLevelDoorLocked("level_wood_1", false);
 PlayGuiSound("unlock_door.snt", 100);
 RemoveItem("key_laboratory_1);
 }
 void UsedKeyOnDoor2(string &in asitem, string &in asdoor)
 {
 SetSwingDoorLocked("mansion_2", false, true);
 PlayGuiSound("unlock_door.snt", 100")
 RemoveItem("key_tomb_1");
 SetLocalVarInt("DoorLocked", 0);
 }
 void UsedKeyOnDoor3(string &in asEntity)
 {
 if(GetLocalVarInt("DoorLocked") == 1)
 {
 SetMessage("Messages", "Doorlock2", 3);
 }
 }
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