LMS Crashing Sporadically

Since a recent update to Qnap OS my LMS 7.8.1 has been crashing sporadically. Nothing in the Qnap Syslog to indicate crash details and LMS log is not much help:

40375: [16-03-04 03:01:32.9371] Slim::Utils::Scanner::Local::__ANON__ (413) Rescanning changed audio files (0)
40374: [16-03-04 03:01:32.9360] Slim::Utils::Scanner::Local::__ANON__ (335) Scanning new audio files (0)
40373: [16-03-04 03:01:32.9349] Slim::Utils::Scanner::Local::__ANON__ (257) Removing deleted audio files (0)
40372: [16-03-04 03:01:28.5721] Slim::Utils::Scanner::Local::rescan (174) Discovering audio files in /share/Qmultimedia/Music/Playlists
40371: [16-03-04 03:01:28.5650] Slim::Utils::Scanner::Local::__ANON__ (413) Rescanning changed audio files (0)
40370: [16-03-04 03:01:28.5640] Slim::Utils::Scanner::Local::__ANON__ (335) Scanning new audio files (0)
40369: [16-03-04 03:01:28.5629] Slim::Utils::Scanner::Local::__ANON__ (257) Removing deleted audio files (0)
40368: [16-03-04 03:00:24.6898] Slim::Utils::Scanner::Local::rescan (174) Discovering audio files in /share/Qmultimedia/Music/FLAC

Any ideas?

TIA