dc1981ae0db9840e78a7cdb3657d9ac7 *skb03-02-22d3t1.shn 160591f4cf30d3b47132a9e3fa175c31 *skb03-02-22d3t2.shn 2a6fb6511bfa06977488888de2d5cc69 *skb03-02-22d3t3.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned