Noob in trouble!

[Macetrow]

Hi, i created a thread the other day with a problem that my monster did not spawn from a key being picked up. Good news thou i fixed that so the monster spawns, but my key doesn't work for any door. I've gone through the tutorial on the wiki and several videos, but nothing seems to work. I didn't want to bother any of the more experienced developers on the forums with this, but it seems i've run out of options.

TL;DR: What did i do wrong with my script so my door doesn't work?

////////////////////////
//Run when starting map
void OnStart()
{
AddUseItemCallback("", "key_1", "mansion_3", "UsedKeyOnDoor", true);
SetEntityCallbackFunc("key_1", "OnPickup");
}
void UsedKeyOnDoor(string &in item, string &in entity)
{
SetSwingDoorLocked("mansion_3", false, true);
PlaySoundAtEntity("", "unlock_door.snt", "mansion_3", 0, false);
RemoveItem("key_1");
}
void OnPickup(string &in asEntity, string &in type)
{
SetEntityActive("monster", true);
ShowEnemyPlayerPosition("monster");
}
void DoorLockedPlayer(string &in entity)
{
if(GetSwingDoorLocked("mansion_3") == true)
{

SetMessage("Messages", "msgname1", 0);

}
}
////////////////////////
//Run when entering map
void OnEnter()
{

}
////////////////////////
//Run when leaving map
void OnLeave()
{

}