252c04cd11981790a68c2a52eb36285b [shntool] gd72-04-29d3matrixt01.shn 415de38afa158e3f1c58f4c4314fb145 [shntool] gd72-04-29d3matrixt02.shn eb6d8e397f796ba179b82a7ebb107fdf [shntool] gd72-04-29d3matrixt03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned