duo2006-07-18t01.flac:2847f298bb7e2053bef5519272695ba8 duo2006-07-18t02.flac:ef8546ee100e32c16b9c854566a8ec65 duo2006-07-18t03.flac:cd88d03e8882f745d9ad6e0b0d3fb504 duo2006-07-18t04.flac:a014b56c8aa2c6edc6b69c2de4e4a757 duo2006-07-18t05.flac:cdb14339ece6fa8210a927d6ac2e15c4 duo2006-07-18t06.flac:73aa1dddd21acfdfdb020903d5db685e duo2006-07-18t07.flac:d038adcba497dba167aa96fc9ca8c5b2 duo2006-07-18t08.flac:674091f58b022dbfe956c369227e36b4 App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned