784385142d166cb0d973f564f4c4a480 *gd1973-11-01_d1t01.flac e0308ebad8f79910874b420f0ee482ee *gd1973-11-01_d1t02.flac 296a4fd257a0f5ce45924f435f6b7ba0 *gd1973-11-01_d1t03.flac d00c63b1ddd79ac2503e2a0601fd96fd *gd1973-11-01_d1t04.flac App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned