Errors after updating plugins

Hi,

I logged into my control panel and noticed there were a few updates for my plugins. After updating it went into maintenance mode for 5 minutes then came up with the following

Warning: require_once(really-simple-share-counts.php) [function.require-once]: failed to open stream: No such file or directory in /websites/123reg/LinuxPackage21/dw/re/mo/dwremoval.co.uk/public_html/wp-content/plugins/really-simple-facebook-twitter-share-buttons/really-simple-facebook-twitter-share-buttons.php on line 28

Fatal error: require_once() [function.require]: Failed opening required ‘really-simple-share-counts.php’ (include_path=’.:/usr/local/php53/share/pear:/usr/local/php53/share/php’) in /websites/123reg/LinuxPackage21/dw/re/mo/dwremoval.co.uk/public_html/wp-content/plugins/really-simple-facebook-twitter-share-buttons/really-simple-facebook-twitter-share-buttons.php on line 28

Any help would be very much appreciated.

Thank you