The parsing error looks like two log lines got joined together somehow, you have the start of the next log line in the middle of the first log line and that caused the field mixups.
The syslogs rotate on LEM at 6:25 am also, but a new log is created and things should continue uninterrupted.
Are you receiving other syslog data on LEM without problems? Have you tried restarting either LEM or the syslog transmission on the Procurve side to see if the logging resumes?