gkm2012-09-16d1t10.flac:7b85507cbbf0af2d152559a8948dc5b7 gkm2012-09-16d1t01.flac:487b1756b94533499755b90655d6b796 gkm2012-09-16d1t02.flac:210c5f95ba2bb0ff107355629c81571d gkm2012-09-16d1t03.flac:1c5d521eec62670b385c9c8ee2c65c98 gkm2012-09-16d1t04.flac:2926bb5ac47f3b53ede07da071739da3 gkm2012-09-16d1t05.flac:aa292f13a152c734fd22c44f23a9e2b7 gkm2012-09-16d1t06.flac:becfc27568657d7ab7eece3a115744ae gkm2012-09-16d1t07.flac:5929af941c72bc25db58bb7698999733 gkm2012-09-16d1t08.flac:8068a38ea0114700710da97315fdff67 gkm2012-09-16d1t09.flac:48588426881b6bb940d7ebb2e69107fe App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned