Requires Windows, Mac, or Linux
Before sending us your log, you can try these basic troubleshooting steps here: http://universesandbox.com/support/basicOften times disabling the Steam Overlay will fix Mac startup issues (see the steps in the link above).
The game shouldn't have performance requirements that are too high. I can run it at 30 frames per second on my Macbook Air, which is considered inferior to the Macbook Pro in terms of specs and gaming performance. The issue you are experiencing is probably not to do with the specs of your device. You can send your log to the developers so they may diagnose what exactly the problem is: http://universesandbox.com/blog/2014/08/support-us2/#emaillog
If you tried all of the troubleshooting options I linked to above, then please send us your log. Instructions are available here: http://universesandbox.com/support/emaillog
Do you mean you're not able to send the file through your email? What email service are you using?
Can you please try enabling safe mode to see if that helps?Instructions are available here: http://universesandbox.com/support/safemodeLet me know if that does not work.