duo2006-07-15d1t01.flac:3ac9a8e3ce95494de66555ff758bab00 duo2006-07-15d1t02.flac:3f3e207dba3ff76a08d0c394b76bdd46 duo2006-07-15d1t03.flac:ada71bfde82ec42f6aba7244d6219c85 duo2006-07-15d1t04.flac:e18bda2bbb313bec177ef9f0fc8483df duo2006-07-15d1t05.flac:4919af937d9304991a72ad32568105c4 duo2006-07-15d1t06.flac:1906ee54c9d3c509aaeaea0063aa15c2 duo2006-07-15d1t07.flac:0e49b9aba6599100643b9f4f59c35235 App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned