i need some help/ explaination

[Headless]

Can someone help me with this code
Can anyone help me plz.
dont know why its wrong:/

Can you guys also explain to me why its wrong?
thx guys.

Btw i get error (14,1) : ERR : Uncexpected token'{'

But its hould be there right?
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void OnStart()
{
AddUseItemCallback("", "SoundDoor", "DoorSlam", "DOORopenSOUND", true);
AddUseItemCallback("", "Key", "Door", "UseKeyOnDoor", true);
}

void UseKeyOnDoor(string &in asItem, string &in asEntity)
{
SetSwingDoorLocked(asEntity, false, true);
RemoveItem(asItem);
}

void DOORopenSOUND(string& asName, string& asSound);
{
SetLevelDoorLockedSound(string& asName, string& asSound, true);
}