um2016-09-15t01.flac:7b78b1e32eb841208027019c88cd4c66 um2016-09-15t02.flac:f8b72a6732b60eed6b0e3e0da4b7e07a um2016-09-15t03.flac:ab47d4df9edaf69a876a31af068bdcac um2016-09-15t04.flac:fd5bf1c73bd85843efd03adaca76f141 um2016-09-15t05.flac:0681774c75d178326fc0cf7be479d9c2 um2016-09-15t06.flac:3023b2636884ee99a887d5b138efa722 um2016-09-15t07.flac:8efd0134c68079dc149d84cb73927dc8 um2016-09-15t08.flac:1c548d0c8ceef876c2b02a658210f63e um2016-09-15t09.flac:0c7884d3e3ef836499734818d9fc0495 um2016-09-15t10.flac:02a32a956992bbb1be074da5ede4835e App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned