A client of mine did something to the core WP php files, the theme or our server and we are locked out:
Warning: require(/home/youvecha/public_html/wp-includes/load.php) [function.require]: failed to open stream: Permission denied in /home/youvecha/public_html/wp-settings.php on line 21
Fatal error: require() [function.require]: Failed opening required '/home/youvecha/public_html/wp-includes/load.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/youvecha/public_html/wp-settings.php on line 21
Any ideas as to what happened? How can I fix it? When would have load.php been used?