cats2019-10-20_t01.akg-matrix.flac:492642b6a1567ff7cb9167cfdc204565 cats2019-10-20_t02.akg-matrix.flac:3166345c518eae33b7507c75bc58dc82 cats2019-10-20_t03.akg-matrix.flac:ea7fb7f1b0acbc3ed26d0daab67143d0 cats2019-10-20_t04.akg-matrix.flac:0b9a3f387183e0d828bcbee41a3f32ec cats2019-10-20_t05.akg-matrix.flac:d63faf0dc027e3d96c9551223c29e4c7 cats2019-10-20_t06.akg-matrix.flac:5117218c27847b99e856fe83d52ef866 cats2019-10-20_t07.akg-matrix.flac:7c081565872ca53eaad79a1a9bc76edc cats2019-10-20_t08.akg-matrix.flac:b9e731c42f237fc760281183a49fceb5 cats2019-10-20_t09.akg-matrix.flac:5675adc38739a8a26a1eccaeedde77c9 App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned