Crash

Hi Guys,
Looking for some help getting my table back up and running. Table is homebuilt running Linux 2.8.4 with a mesa 7i76E. I had no issues for the last year and half however today i tried to cut some simple 4x4 square plates in the plasmac extras section which I've used before but it would not load the g code or file. I managed to load previous saved files that i cut before with no issues. One thing i had noticed was the system had been connected to the internet which I'm not sure how this could have happened because i never connect this system to the internet, at least i thought. After disconnecting again I cannot load anything without error messages and i noticed sheetcam will not open when linux cnc is running. I have tried searching a fix but I am afraid of making things worse. I am not very good with any of the programming or technical issues and the friend i had helping with that is no longer with us. I attached a pic of the screen with messages that came up. This is when i first open it
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