7a6c44b2cfac1a7ffc1a2821f18fa293 *db2004-01-02d1t01.shn 6376b361fa29e722a28e0174dd53f3f5 *db2004-01-02d1t02.shn 08309c228ebea505648e9253bd5c4bef *db2004-01-02d1t03.shn 6d7ae00858a21c093b6149638d478a7e *db2004-01-02d1t04.shn App\Http\Controllers\Api\ChecksumDownloadController::download(): Return value must be of type string, none returned