Hi Luigi, thanks for the reply.
I added the rule to the .htaccess file and now the pages indexed by google with https have the redirect to the HTTP protocol.
The problem is that it always refers to page miosito.it/index.php.
It seems that he can not retrieve the correct URL.
Example: if Google has indexed the page
https://miosito.it/categoria/pagina.html the rules included in the .htaccess file should send me back to page
http://miosito.it/categoria/pagina.html.
Do you think you can or you rightly refer to page
miosito.it/index.php.
At this point, I also need to set the page as
miosito.it/index.php canonical of
miosito.it.
thanks