My page is broken after upgrade..

Hello everyone..

My page is totally broken after upgrade.. can I put back on previous version of web page which I had?
Now looks like that http://principia.altervista.org/#
and before was like http://s5.postimg.org/x7yy55b8n/website_screen.jpg

You see what I mean..

Thanks

Ok, now is ok.. edit button coming back and is possible clcik on it, and I could manage now broken things..

A recent update introduced the problem, we solved it as soon as we found the issue. Everything should work correctly now.