Fatal Error

I’m receiving the following error when trying to view my website…

“Warning: main(/home/maggie/public_html/wp-includes/pluggable.php) [function.main]: failed to open stream: No such file or directory in /home/maggie/public_html/wp-settings.php on line 207

Warning: main(/home/maggie/public_html/wp-includes/pluggable.php) [function.main]: failed to open stream: No such file or directory in /home/maggie/public_html/wp-settings.php on line 207

Fatal error: main() [function.require]: Failed opening required ‘/home/maggie/public_html/wp-includes/pluggable.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/maggie/public_html/wp-settings.php on line 207″