Jetpack Update!

Hi i have updated my wordpress 4.1 worked lovely then i updated all my plugins and now my site reads:
Warning: require_once(/home/u825372109/public_html/wp-content/plugins/jetpack/class.jetpack-client-server.php) [function.require-once]: failed to open stream: No such file or directory in /home/u825372109/public_html/wp-content/plugins/jetpack/jetpack.php on line 34

Fatal error: require_once() [function.require]: Failed opening required ‘/home/u825372109/public_html/wp-content/plugins/jetpack/class.jetpack-client-server.php’ (include_path=’.:/opt/php-5.3/pear’) in /home/u825372109/public_html/wp-content/plugins/jetpack/jetpack.php on line 34

How do i get my site back i downloaded jetpack.php looked on line 34 but its the same as my backup before i did the update. any ideas why i cant get back on my site?

Thanks Wez