HPS and extra_english.lang not working

[SetsuPotato]

So today I was making a custom map because I was bored and when I tried to run it, it crashed. I tried removing the extra_english.lang and it will run, but my .hps file seems to be doing nothing whatsoever. None of my keys are working or anything.
I probably messed up somewhere while I was writing one of them, which is likely because I'm new to the HPL editor and coding.

My HPS file:

void OnStart()
{
AddUseItemCallback("", "key_din", "door_din", "UsedKeyOnDoor", true);
SetEntityPlayerInteractCallback("key_din", "MonstAct1", true);
}

void UsedKeyOnDoor()
{
SetSwingDoorLocked("door_din", false, true);
PlaySoundAtEntity("", "unlock_door", "door_din", 0, false);
RemoveItem("key_din");
}

void OnEnter()
{

}

void OnLeave()
{

}

void MonstAct1(string &in item)
{
SetEntityActive("monster1", true);
AddEnemyPatrolNode("monster1", "PathNodeArea1", 0, "Idle");
AddEnemyPatrolNode("monster1", "PathNodeArea2", 0, "Idle");
}

My extra_english.lang:

<LANGUAGE>
<CATEGORY Name="CustomStoryMain">
<Entry Name="Description">I don't know where I am.</Entry>
</CATEGORY>

<CATEGORY Name="Journal">
<Entry Name="Note_letterbedroom_Name">Is anyone here?</Entry>
<Entry NAme="Note_letterbedroom_Text">Hello? Is anyone here?[br]I've found some stuff and left it on the desk for if anyone ends up here.[br]I couldn't seem to get that other door open. There's gotta be a key somewhere.</Entry>
</CATEGORY>
<CATEGORY Name="Inventory">
<Entry Name="ItemName_keydin">Dining Room Key</Entry>
<Entry Name="ItemDesc_keydin">Key to the Dining Room</Entry>
</CATEGORY>
</LANGUAGE>[/code][/quote]