Hi and Welcome to Apple Discussions...
According to Apple Error Codes here:
http://docs.info.apple.com/article.html?artnum=9804
That error code means, "no eligible process with specified process serial number". Are you by chance using an application that was a trial version and it expired?
Also, anytime you get the, "application unexpedtedly quit" dialog box, it can also mean there isn't enough available disk space. Open Disk Utility from the Applications/Utilities folder. Select MacintoshHD in the panel on the left. Now look down at the bottom of that window where it says:
Capacity and Available. Make sure you always have 20% free disk space of the total drive. It takes 15% just to boot your Mac.
Carolyn 🙂