Recurring error message in log file

My log file has thousands of error message like these:

[21-02-19 11:16:57.0544] Slim::Utils::Misc::msg (1255) Warning: [11:16:57.0539] DBIx::Class::ResultSet::single(): Query returned more than one row. SQL that returns multiple rows is DEPRECATED for ->find and ->single at /<C:\PROGRA~2\SQUEEZ~1\server\SQUEEZ~3.EXE>Slim/Schema.pm line 2280
[21-02-19 11:16:57.0669] Slim::Utils::Misc::msg (1255) Warning: [11:16:57.0664] DBIx::Class::ResultSet::single(): Query returned more than one row. SQL that returns multiple rows is DEPRECATED for ->find and ->single at /<C:\PROGRA~2\SQUEEZ~1\server\SQUEEZ~3.EXE>Slim/Schema.pm line 2280
[21-02-19 11:26:57.0671] Slim::Utils::Misc::msg (1255) Warning: [11:26:57.0666] DBIx::Class::ResultSet::single(): Query returned more than one row. SQL that returns multiple rows is DEPRECATED for ->find and ->single at /<C:\PROGRA~2\SQUEEZ~1\server\SQUEEZ~3.EXE>Slim/Schema.pm line 2280
[21-02-19 11:26:57.0790] Slim::Utils::Misc::msg (1255) Warning: [11:26:57.0785] DBIx::Class::ResultSet::single(): Query returned more than one row. SQL that returns multiple rows is DEPRECATED for ->find and ->single at /<C:\PROGRA~2\SQUEEZ~1\server\SQUEEZ~3.EXE>Slim/Schema.pm line 2280

Twice every 10 minutes, even when the system isn't doing anything. When it is playing, it often stops in the middle of a track and skips to the next one; if I back it up, it will usually play the track properly.

Here's my current software, etc.:

Logitech Media Server Version: 7.9.3
Operating system: Windows 10 - EN - cp1252
Platform Architecture: 8664
Perl Version: 5.14.1 - MSWin32-x86-multi-thread
Audio::Scan: 0.95
IO::Socket::SSL: 2.024
Database Version: DBD::SQLite 1.58 (sqlite 3.22.0)

Connected are two Squeeze Radios and a Chromecast audio-only dongle. The Chromecast player is the one that skips.

Any help/clarification would be appreciated.