Website/Dashboard not launching after plugin update

Please help:

I keep getting the following error message each time I type my website/ or try to log in to the dashboard

Warning: require_once(/home/content/p3pnexwpnas01_data02/46/2208746/html/wp-content/plugins/event-rocket/inc/jettison.php): failed to open stream: No such file or directory in /home/content/p3pnexwpnas01_data02/46/2208746/html/wp-content/plugins/event-rocket/launcher.php on line 36

Fatal error: require_once(): Failed opening required ‘/home/content/p3pnexwpnas01_data02/46/2208746/html/wp-content/plugins/event-rocket/inc/jettison.php’ (include_path=’.:/usr/local/php5_4/lib/php’) in /home/content/p3pnexwpnas01_data02/46/2208746/html/wp-content/plugins/event-rocket/launcher.php on line 36