SharePoint Foundation 2010, error 7ba54aea-5d64-

Hi

I have a SPF 2010 with a SQL 2008 cluster.

I use the url: http://server_name

But I did an alias in the DNS, so I can use the url http://site

But Now some areas in the SPF 2010 fails:

Everything goes well with the server name.

I hope, It is a sPF 2010 configuration that I don’t know

Regards

sAnTos