I need help with multiple keys

[andrejapotic98]

I realy need help so please respond .

I am making my custom story for a while and i already made the key for one locked door.
Now i decided to make another key for the another door.
So what i did, I copied the whole script again and just renamed key and locked door.
When i start the custom story the game crashes and shows:ERR: A function with the same name and parameters already exists.
I dont know whats the problem this is how it looks like:

void OnEnter ()
{
AddUseItemCallback("", "monsterdoorkey_1", "monsterdoor", "UsedKeyOnDoor", true) ;
AddUseItemCallback("", "hallwaykey", "HallWayDoor", "UsedKeyOnDoor_1", true) ;
}

void UsedKeyOnDoor (string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("monsterdoor", false, true) ;
PlaySoundAtEntity("", "unlock_door", "monsterdoor", 0, false) ;
RemoveItem ("monsterdoorkey_1") ;
}


void UsedKeyOnDoor (string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("HallWayDoor", false, true) ;
PlaySoundAtEntity("", "unlock_door", "HallWayDoor", 0, false) ;
RemoveItem ("hallwaykey") ;
}

I saw that you have forum and i was like oh great someone will answer me. So please if you know the solution answer .