Fatal Error after updating plugins

I am getting this error after updating the smush plugin: "Fatal error: Cannot redeclare wp_smush_rating_message() (previously declared in /home/jpworksp/public_html/www.xspace.com.au/wp-content/plugins/wp-smush-pro/wp-smush.php:68) in /home/jpworksp/public_html/www.xspace.com.au/wp-content/plugins/wp-smushit/wp-smush.php on line 93"