Need help troubleshooting an error

I'm running LMS Version: 7.8.1 - 1428327708 @ Tue May 12 03:15:04 UTC 2015 on a Netgear NVX NAS and every morning my server boots up with the following error

[15-05-14 05:21:01.7076] Slim::Utils::Misc::msg (1311) Warning: [05:21:01.7070] DBIx::Class::ResultSet::update_or_create(): Query returned more than one row. SQL that returns multiple rows is DEPRECATED for ->find and ->single at /usr/share/perl5/Slim/Schema.pm line 1886

Any ideas of what is causing this error or how to fix it???

Thanks,
Staudie