31b0788aadae6c887129a7d2cdd6a5ba *skb2001-12-29d1t1.shn c30f833792a93d781082d1c63f8cf042 *skb2001-12-29d1t2.shn bb0167960b9177b6a82af2a08799e53f *skb2001-12-29d1t3.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned