Chat rooms not available

Since yesterday the chat room which I been using for 3 years, happeared completely empty, dark brown and not blue, with the smiles only
working. The menu is blocked completely I can only see the page with the cubes of the other chat roms but I cant open them.
What is going on? The page with the map and planes works perfecty as before as all other menu items, apart from the chat.
Regards
Guido Rizzo