Forece Rebuild Local Web Content Cache

- I have been using the Local Web Content Cache for a long time.

- Recently browing websites is Seriously Slow with Time Out Reading from web content server.

- I rebooted my Internet Router and tested connection to be fine.

- I rebooted my Astaro.

- I suspect the Local Cache may be corrupted and wants to Delete the current data and force it to redownload entire database.

I set it to None for now instead of MEM.