Whenever I click "rebuild sitemap" or even do a ping test, i just get a white page.
There was a problem while notifying Google. View result
There was a problem while notifying Bing. View result
There was a problem while notifying Ask.com. View result
I used a XML sitemap generator from a website for now... but I think this plugin needs a wordpress compatibility update. It just doestn't work anymore on this particular installation.
I've checked the permissions on the sitemap.xml and gzipped file, and they're set correctly.