Export Rate->"File Not Found" pop up is displaying while trying to export same rate template second time.

1] Login to the application on Stage environment .
2] Search a Company.
3] Navigate to Customizer>Rates.
4] Click on "Import" button the "Rate Import" window gets display.
5] Click on “Add New Rate” tab.
6] Select "Health or Health_SelfInsured or Life” as a benefit template type.
7] Click on “Download File” button.
8] Template gets exported.
9] Again click on download button.

Actual Result:
"File not found" pop up is displaying.
Expected Result:
File should be get exported for second time as well.