I am having trouble with my wordpress site (www.magnetnewz.com). A few hours back I was upgrading to WP 3.4.1 and in the way the upgrade process was interrupted and my host server went on scheduled maintenance. Now when I open my site it give the below mentioned message. "Fatal error: require() [function.require]: Failed opening required '/home/a8534510/public_html/wp-includes/class-wp-theme.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/a8534510/public_html/wp-settings.php on line 115" Please help me to rectify this problem.