Crash on Startup: Undefined ARRAY with GStreamer Enabled

[guillermofbriceno]

1. Select GStreamer as my audio out in the settings.
2. Close gmusicbrowser
3. Try to start gmusicbrowser again, get the following error:

Can't use an undefined value as an ARRAY reference at /nix/store/p5ai2iyd929xpnfsz7j43qd1ay2hznag-perl5.36.0-gmusicbrowser-unstable-2022-03-02/bin/../share/gmusicbrowser/gmusicbrowser_gstreamer-1.x.pm line 427.

If I manually change the AudioOut field back to Play_123 in my gmbrc, I can start gmusicbrowser again with no issues.
Swtching to GStreamer while the app is running causes no issues with playback.