e6583843e6c9152b051c9ceab2c1f147 *dmb1993-11-27d1t01.shn 8017a69983e45309f24a671c9dab2c85 *dmb1993-11-27d1t02.shn 1b168d97e25aba4c851ac8c926d6d910 *dmb1993-11-27d1t03.shn 88beaf58486ca1fcd22de93405de36e1 *dmb1993-11-27d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned