Hi.

Server got a php5.3 update and now the sitemap is not working.
Everytihng else seems to be working fine.
It seems to have the problem on the second level pages only.

I get two kind of error messages:

"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request"

or
(See attachment)

Clearing the cache helps only for the first error.

Setup:
# concrete5 Version 5.4.1.1
# Server Apache/2
# PHP version 5.3.6

Edit: The first error on broser window when loading the sitemap page itself

The second error on c5 popup window when accessing second level pages.