Unexpected end of file

[rybray]

In your OnEnter() function, you forgot to close DoorKey with a quotation mark.

It should look like:

AddUseItemCallback("", "DoorKey", "castle_arched01_1", "UsedKeyOnDoor", true);

It's always the little things

And to think I stared at this tiny script for 15 minutes, up and down. Thank you.