Appimage will not launch on Ubuntu

Hello Friends!
I downloaded the latest .appimage and set it to execute but when I double click it, nothing happens.
I tried to run it from terminal and get this error

[1874004:0212/] GPU process isn’t usable. Goodbye.

Welcome to PhotoStructure, @Mosaic4142 ! Apologies for this glitch.

Please try an alpha build: (and if you find any other glitches, please do share, I’ll try to get on it as soon as I can).