Hi Ira,
It looks like you have a server process crashing on you. This could have various reasons, so let's try a quick fix first: have you tried a restart of the HANA DB already?
If this doesn't fix the problem, please check the tab "Diagnosis Files" for your HANA server in HANA Studio (double click the connection and then navigate to the tab). Look for a recent indexserver_alert_*.trc or statisticsserver_alert_*.trc file and see if you find any clues in there.
--juergen
PS: what is your HANA Revision?