938cc9b2f6c7fc9f882d0d29f5b7d46f *skb00-10-28d1t01.shn 049f70d3fc933862fa1fe245f788673e *skb00-10-28d1t02.shn 3498095d4f59223bf1d810801705c7c3 *skb00-10-28d1t03.shn 5ff76cb5956ca4a69e48964cd2dd073e *skb00-10-28d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned