[Coco] Ghana Bwana on my Coco3 not working but ok on Coco2

[Ghislain Harvey]

HI everyone.
While trying some old stuff I came through Ghana Bwana.
I have one problem with the game, it freeze at the loading screen.
This freeze happen on a real coco3 and on coco3 emulator. BUT it is working
on COCO2 emulator.
I would like to know if there is a way to make it work for COCO3 because im
90% sure I was running it before on my coco3. Maybe some poke to do before
loading?
Thanks for your support

Ghislain Harvey