only encountered so far when speaking to Bran in Ulduar right at the beginning to start

2x DialogKey/main.lua:245: attempt to get length of field 'frames' (a nil value)
[string "@DialogKey/main.lua"]:245: in function <DialogKey/main.lua:164>

Locals:
self = DialogKeyFrame {
}
key = "1"
doAction = false
keynum = 1
(*temporary) = nil
(*temporary) = Frame {
MaterialTopLeft = Texture {
}
ScrollBar = Frame {
}
ScrollBox = Frame {
}
GoodbyeButton = Button {
}
}
(*temporary) = true
(*temporary) = nil
(*temporary) = nil
(*temporary) = "attempt to get length of field 'frames' (a nil value)"