Question about google sitemap

[bigPunk]

I have a wordpress site, with Google XML Sitemaps plugin installed, I have confirmed my site in Google Webmaster Tools long time ago, and added the sitemap to my account there. everything worked good untill today, for some reason I get an error that says my sitemap is not in a supported format and a link to here: https://www.google.com/support/webma...r=156184&hl=iw
Now I didn't touch anything so I don't really know what to do here.... my sitemap is working like it worked before, but for some reason it get an error on webmaster tools... please help

[GangsterProfit]

Did you try to resubmit? Manual submission?

Take a look and see if the plugin needs to be updated. Did you update to the newest version of wordpress? Possible they haven't updated the plugin yet to be compatible with WP 4.0, which came out last week.

[bigPunk]

I re submitted, and updated to wordpress 4. The weird thing is that it worked fine and now its not. I have other wordpress sites with that plugin and no error with their sitemaps

[GangsterProfit]

Post a screenshot of the actual error if you can, and maybe a link to the site if you're willing. Doesn't seem like enough info here to figure out the issue.

[bigPunk]

Turned out that my site got attacked by malware. I did a full restore and now everything works. Thank you for trying to help I appreciate it.