Plugin problem

After I activate add to any the plugin , My website cannot display the web page.
Most likely causes:
You are not connected to the Internet.
The website is encountering problems.
There might be a typing error in the address.

In my wp-admin page there on the top display “; return $content; } add_action(‘the_content’, ‘a2a_add_to_any_to_content’); add_action(‘the_content_rss’, ‘a2a_add_to_any_to_content’); ?> “

How to solve it problem??
Thank You