PS 1.5 Dashboard lost css

[sso]

Hello,

 

Hope somebody can help. I have searched for this issue but didn't find nothing.

 

I have upgraded from 1.3 to 1.5.3 everything went ok.

 

Theme is new and compatible with 1.5.3

 

Front end works excellent.

 

Back end everything work but there is a small problem.

 

The dashboard has lost the css, I can see the link and they work to stats, etc but no css at all, no header, no footer no body...

 

The rest of the back end is working ok.

 

Is there any way to restore the css?

 

Thanks