Hello,
Thanks for your message and your log file
Are you able to directly launch softwares from their repository ?
( According to your log file : C:\Program Files\Allegorithmic\Substance Painter\Substance Painter.exe )
If so we may indeed have an issue on the launcher side ... But if you are not able to launch the soft the issue is somewhere else ... Could be an out of date driver, non supported video card, ...
In that cas I suggest you directly contact our support team to have some more specific help on this matter ...