Fatal Error After Installing Woo Commerce Share This Plug In

Logged in to my wordpress dash board to continue working on my site – I noticed there was upgrades for woo commerce and plug ins for Share This, Google analytics – so I update and then went to plugins to activate.
My site disappeared and I received this message:
Warning: include_once(includes/class-wc-sharethis-integration.php) [function.include-once]: failed to open stream: No such file or directory in /home/content/35/11573435/html/wp-content/plugins/includes/woocommerce-sharethis-integration.php on line 16

Warning: include_once() [function.include]: Failed opening ‘includes/class-wc-sharethis-integration.php’ for inclusion (include_path=’.:/usr/local/php5_3/lib/php’) in /home/content/35/11573435/html/wp-content/plugins/includes/woocommerce-sharethis-integration.php on line 16

Fatal error: Class ‘WC_ShareThis’ not found in /home/content/35/11573435/html/wp-content/plugins/woocommerce/includes/class-wc-integrations.php on line 33

I cannot access my log in or go back to dashboard or access anything in my site.
I do not know what to do – please help!

This site was not live yet however when I google it I get this same fatal error message.

Please help!!