8266a5f33e34b11621d45202b6b40179 *db1999-04-23d2t01.shn 2e30b3aa738c1e63e2fc84769ba191af *db1999-04-23d2t02.shn 2fc8ff78dd67dc50f7a2ecdd86d8b2f3 *db1999-04-23d2t03.shn 3656e6ea9e5f0fa028b2e457b3356944 *db1999-04-23d2t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned