9446b74fb3df363c54f752d6b35cd3d7 *gtb2000-12-31d2t01.shn e012bc43c9ad91fcbd25425c2edf9f08 *gtb2000-12-31d2t02.shn 6b7d6bbb46e03799b4e9e5022753b670 *gtb2000-12-31d2t03.shn 5d6af76ffed6c7be5068ed34c09206bd *gtb2000-12-31d2t04.shn ab8b7ea398f8d3b1739f0793cd6ed39d *gtb2000-12-31d2t05.shn App\Http\Controllers\Api\FileDownloadController::download(): Return value must be of type string, none returned