Can no longer scan library

The scan runs for a while then quits with an error message. Any help with what to do about it would be greatly appreciated. I've installed the latest build - LogitechMediaServer-7.9.0-1451477685 - over the existing installation

What follows is a portion of the log file where anything out of the ordinary starts to occur:

[15-12-31 19:20:21.3297] Slim::Schema::Storage::throw_exception (122) Error: DBI Exception: DBD::SQLite::st execute failed: database disk image is malformed [for Statement "DELETE FROM library_track WHERE library = ?"]
[15-12-31 19:20:21.3302] Slim::Schema::Storage::throw_exception (122) Backtrace:

frame 0: Slim::Utils::Log::logBacktrace (/<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>Slim/Schema/Storage.pm line 122)
frame 1: Slim::Schema::Storage::throw_exception (/<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>DBIx/Class/Storage/DBI.pm line 1006)
frame 2: DBIx::Class::Storage::DBI::__ANON__ (/<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>Slim/Music/VirtualLibraries.pm line 301)
frame 3: Slim::Music::VirtualLibraries::rebuild (/<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>Slim/Music/VirtualLibraries.pm line 264)
frame 4: Slim::Music::VirtualLibraries::startScan (/<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>Slim/Music/Import.pm line 513)
frame 5: Slim::Music::Import::runImporter (/<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>Slim/Music/Import.pm line 411)
frame 6: Slim::Music::Import::runScanPostProcessing (scanner.pl line 340)
frame 7: (eval) (scanner.pl line 340)
frame 8: main::main (scanner.pl line 498)

[15-12-31 19:20:21.3313] main::main (344) Error: Failed when running scan post-process: [Carp::Clan::__ANON__(): DBI Exception: DBD::SQLite::st execute failed: database disk image is malformed [for Statement "DELETE FROM library_track WHERE library = ?"] at /<C:\PROGRA~2\SQUEEZ~1\server\scanner.exe>Slim/Schema/Storage.pm line 126
]
[15-12-31 19:20:21.3315] main::main (345) Error: Not updating lastRescanTime!