Buddypress plugin... bad idea (PLEAS HELP)

Hello I was reading about some plugs for make a social network on your site and... one of the plugins shotdown my site, now you can read something like: Fatal error: Class 'BP_XProfile_Group' not found in /membri/romanceideal/wp-content/plugins/profiles-manager-for-buddypress/frontEngine.php on line 10
on the top of the site, if someone wanna help me please...

the website is: romanceideal.altervista.or

[karl94]

You can use the recovery mode.