When I open my SharePoint site on SharePoint Designer 2013, I got this error. I logged with username and password and then:
When I clicked Details buttons:
I searched on the net this problem, I looked this url http://www.brightworksupport.com/error-when-opening-site-in-sharepoint-designer-2013/enter link description here
But my site is broken and doesn't open when change disable to enable anonymous authentication.
How can i solve this problem with another way? I can't open designer and I can't edit any page.