Goosebumps Horrorland (DS) (GWAD)

[phantaton]

I tried using http://aluigi.zenhax.com/bms/natgeo_wad.bms to unpack the wad archive in this Nintendo ds game, as it is from the same developer and it uses the same format. The problem is that the script isn't unpacking the files. It simply spits out this error:

Here's the archive in question:
https://drive.google.com/open?id=1fzaVkUMbHxHH68GPGGJ-S0r_w6vcdXSR

[aluigi]

Script 0.1.1