5b94592d5c334aec4f02e17395cbd324 [shntool] gd77-03-18d2t01.shn 80c584460caff2f8b81a29269682a12d [shntool] gd77-03-18d2t02.shn fa677d00fc8ad925462322c4b4be1d54 [shntool] gd77-03-18d2t03.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned