Unfortunately, this may be beyond a simple fix. The error 400 is generated because the link that the search engine found is completely messed up (you can't send a http request to port 443). The page being displayed is automatically generated, and needs to be overridden in the main server configuration - you may not be able to change the page if you are on a shared host. If possible the page that originated the bad link should be found as soon as possible and corrected.

__________________
The best way to learn anything, is to question everything.