kw1998-06-07d1t01.flac:165a66f3f2aaa84928f627eda8182282 kw1998-06-07d1t02.flac:1f8d565c93bfdaf91080f38fbf5a46f1 kw1998-06-07d1t03.flac:e9e59c05fc3b588c66c7ac62ee460ae6 App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned