Problems with coding / scripting for my custom story

[Darion97]

Try this:

void OnStart()
{
AddUseItemCallback("", "firstkey_1", "firstdoor_1", "Usedfirstkey_1", true);
}
void Usedfirstkey_1(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked("firstdoor_1", false, true);
PlaySoundAtEntity("", "unlock_door", "firstdoor_1", 0, false);
RemoveItem("firstkey_1");
AddDebugMessage("Wrong", false);
}