Error going to login and register pages

[norman]

My website (http://newmediawarrior.net) is currenty getting an error messages when going to the register or login pages:
This is the error you get when you go to either: http://www.newmediawarrior.net/profile/register or http://www.newmediawarrior.net/profile/login

PHP

Warning: require_once(/home/content/23/8956223/html/wp-content/plugins/userpro//lib/envato/Envato_marketplaces.php) [function.require-once]: failed to open stream: No such file or directory in /home/content/23/8956223/html/wp-content/plugins/userpro/index.php on line 26 Fatal error: require_once() [function.require]: Failed opening required '/home/content/23/8956223/html/wp-content/plugins/userpro//lib/envato/Envato_marketplaces.php' (include_path='.:/usr/local/php5_3/lib/php') in /home/content/23/8956223/html/wp-content/plugins/userpro/index.php on line 26

1 2 3 4

Warning: require_once(/home/content/23/8956223/html/wp-content/plugins/userpro//lib/envato/Envato_marketplaces.php) [function.require-once]: failed to open stream: No such file or directory in /home/content/23/8956223/html/wp-content/plugins/userpro/index.php on line 26   Fatal error: require_once() [function.require]: Failed opening required '/home/content/23/8956223/html/wp-content/plugins/userpro//lib/envato/Envato_marketplaces.php' (include_path='.:/usr/local/php5_3/lib/php') in /home/content/23/8956223/html/wp-content/plugins/userpro/index.php on line 26