No active batch.

I have view to witch i attached Data View generating xls file using batch mode.

After second/third/... time pressing "Export button" or going second/third/... to "export url" i'm getting "No active batch." message.
The problem is related to fact that system is trying to generate file using old batch url ex. "batch?op=start&id=18110".

After 60 s i can generate my file again.