Google Sitemap error with Vbseo sitemap 3.0

Hi for all,
Google gives me error in the sitemap (as shown)


The errror says:
We encountered an error when trying to access your Sitemap. Please ensure your Sitemap follows our guidelines and can be accessed at the location you provided and then resubmit

I downloaded the file there are problems of access to it

Thanks

This happens from time to time.

Just delete the entire thing and re-submit the index again.