I have a site that was upgraded from Kentico 8.2 to 11 and everything was working fine up until about 4 days ago. The site was being tested by users and the Pages app had an error. When you try to expand any node in the left tree menu the page throws a 403 forbidden error trying to access /CMSModules/Content/CMSDesk/Default.aspx and the icon spins. The Pages app was working fine last week and the permissions on the site/file systems have not been changed. Any suggestions on fixes or ways to track down the issue would be appreciated.
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