4ae1623c885d264ae520b449fd429481 [shntool] gd80-06-20S1T01.shn 033c6cadcf4e79641533353ff17b1ae2 [shntool] gd80-06-20S1T02.shn 2a39bccbecfb99d4511ecfbeef1db0e2 [shntool] gd80-06-20S1T03.shn f0aff13da1ee8ca209129dcb9f3ebab4 [shntool] gd80-06-20S1T04.shn fadcc886e6c7384a9587c149f75d36c9 [shntool] gd80-06-20S1T05.shn bdcc538d1e42dd2d805107245516cda8 [shntool] gd80-06-20S1T06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned