FMS appears to have crashed. The last few entries in the FMS log are of the form:
INFO [main] Launcher/src/unix/control - Shutdown message received. Beginning launcher shutdown sequence
VERBOSE [native] Shutdown request from: XXXXX), process ID YYYY
VERBOSE [native] {external process launcher} stdout: 2011-08-31 03:03:40.000 INFO [native] Quest Process Runner exiting normally.
VERBOSE [native] {external process launcher} stdout: 2011-08-31 03:03:40.000 INFO [native] Stopping process Embedded FglAM
VERBOSE [native] {external process launcher} stdout: 2011-08-31 03:03:40.000 WARN [native] External process terminated after receiving a signal 15, which it did not handle.
In the absence of any other evidence this usually indicates that someone or something manually shutdown the FMS. The actual details of XXXXX in the above log entries should indeed what shutdown the FMS.