cf48d5b27f97f8f36707ab1e9bace7b6 [shntool] gd69-06-06d1t01.shn c23795efb262fe4b024dbc486cc1e4a6 [shntool] gd69-06-06d1t02.shn 7caf3a6a52f97f989243a5c66a5bd91e [shntool] gd69-06-06d1t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned