mt2012-08-18t01.flac:9843feba86ed069e12d8fef935e816b6 mt2012-08-18t02.flac:22d8e97b88f606f957a608f731cc660c mt2012-08-18t03.flac:e2fb454c461ab3ecf3de56eaa606387a mt2012-08-18t04.flac:019f2e16457eb592d4b330213bbfb7e4 mt2012-08-18t05.flac:b1495b8c6d1f1baaaa4e2c2bc2bed0d4 App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned