Just created a brand new CentOS6.7 64-bit machine. Updated using yum update to make current.
Installed latest StarMade (1.8) fresh. Didn't map any keys.
Start game for the first time (Sandbox). Once I spawn in the shop, I press the leftCTRL key. Bombs straight out.
Is there a debug version of this game that I can try that might give information?

I'm sending you your 2 logfiles, plus the terminal output of the server.
It's a lot. You may want to not show it anyway.
Note: the 1st line below outputs VERION instead of VERSION.

Yes, I have admin privileges on the server.
How do you want me to send you the logfiles? Text-copy into this textfield, or direct file transfer somehow?
My Java is current (1.7.0_91 (64 bit)). I don't have an Ubuntu machine myself to try it on, but we have more than one CentOS x64 here. Only mine does this weird crash.
I'm using the final version of CentOS 6.
The graphics card couldn't cause an issue like this, could it?

CentOS 6-64bit.
Using current version of 64-bit Java.
No other S/W running other than Firefox.