008edd91f088155e85f299f09e41c5b3 *kdtu2002-12-11d03t01.shn c64c0c84469b2765d832333f70810fea *kdtu2002-12-11d03t02.shn 53523066f12926832dab92bb511fcd39 *kdtu2002-12-11d03t03.shn 5c4387708c558685399c858940091e79 *kdtu2002-12-11d03t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned