ccb1a4b81e2b731f6be7a07fab32db08 [shntool] gd67-01-27t01.shn aaf397ee57be2a1825f5e7bdfebc275a [shntool] gd67-01-27t02.shn 3b43ae83f977dd80c029a31e034a35bf [shntool] gd67-01-27t03.shn 52b7db7bdb3d2df93b5f484b95dc78c3 [shntool] gd67-01-27t04.shn d6a453895f1f76e2a5faa0ef23a40d19 [shntool] gd67-01-27t05.shn cf4fbd912f2ff863ded5b1f1d3c8e66e [shntool] gd67-01-27t06.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned