duo2006-06-10t01.flac:b939ce9960a9ebe0d62d2bc3769ac1ae duo2006-06-10t02.flac:a3b938b90830244c598c2b5bc367f7d3 duo2006-06-10t03.flac:06a8b41dab4b584cbb37169d702e6028 duo2006-06-10t04.flac:ffbff587cfc68f0df19f82356bcf80c7 duo2006-06-10t05.flac:24af666135d846099d2e97d374178000 duo2006-06-10t06.flac:5482a10d1cb131bcd3396e0f6e68c584 duo2006-06-10t07.flac:77a48691c5f579348d9d5b9356804353 duo2006-06-10t08.flac:998a4d44f6a47eb429ed6a12c5987d40 duo2006-06-10t09.flac:7f152f6ff7dd6919105bcf6afa050a63 App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned