Error at the top of the forum

Error at the top of the forum

  • Notice: Undefined index: files_with_preview in _oga_audio_preview() (line 392 of /var/www/sites/opengameart/sites/all/modules/oga/oga.module).
  • Notice: Undefined index: files_with_preview in _oga_audio_preview() (line 394 of /var/www/sites/opengameart/sites/all/modules/oga/oga.module).

This is appearing at the top of the forum. I don't know what it means but the site was down today and I thought that could have something to do with that?

It just happens sometimes not all the time.