Internet archive game launcher - Amiga whdload

Hi

I am using the addon puae emulator to try and play some games in kodi. I am using internet archive game launcher and is trying to run the amiga whdload collection. I have all the right kickstart roms in the right places but it just won't load and just shows this in amiga dos

"Assign: function not implemented

Missing else or endif"

I'm running this on nvidea shield android box.

Anybody know what I am doing wrong ??