Site not working due to plug-in – please help!

Please can somebody help? This message comes up on my site and I do not have full access to my computer at the moment.

What can I do to change it??

Warning: require_once(/home/content/p3pnexwpnas03_data01/66/2418566/html/wp-content/plugins/google-analytics-for-wordpress/vendor/composer/autoload_real_52.php): failed to open stream: No such file or directory in /home/content/p3pnexwpnas03_data01/66/2418566/html/wp-content/plugins/google-analytics-for-wordpress/vendor/autoload_52.php on line 5

Fatal error: require_once(): Failed opening required ‘/home/content/p3pnexwpnas03_data01/66/2418566/html/wp-content/plugins/google-analytics-for-wordpress/vendor/composer/autoload_real_52.php’ (include_path=’.:/usr/local/php5_4/lib/php’) in /home/content/p3pnexwpnas03_data01/66/2418566/html/wp-content/plugins/google-analytics-for-wordpress/vendor/autoload_52.php on line 5