I don't know, it's running on Ubuntu 20.04.1 LTS 64 bit here, just tested it.
I also ran the install script and it didn't complain about not finding anything as far as I could see.
Did you go to the properties of the "YAW" file and tick the "allow executing file as program" box?
That is required for some reason or else it won't run but other than that I don't know why it doesn't work for you.
Building it for 64 bit is not possible either so I can't do that unfortunately.
The only other suggestion I can give is to try the windows version with wine or something.