I have changed my blog to AlterSite, and installed several plugins i do not rember now and new theme. But right now this is the message i get on clicking my site url, "Fatal error: Call to undefined function get_home_path() in /membri/sembosi/wp-admin/includes/misc.php on line 202".

What can i do to get rid of it?, any help please.

NOTE: I migrated my site from Blogger to Wordpress and so placed some codes on function.php