Fatal error when I activate comments plus

Hi guys,

OK I have installed comments plus and Im getting this error from my logs:

PHP Fatal error: Cannot redeclare class OAuthException in /home/sites/honeybeekeeping.co.uk/public_html/wp-content/plugins/comments-plus/lib/external/twitter/OAuth.php on line 8, referer: http://honeybeekeeping.co.uk/wp-admin/plugins.php?error=true&plugin=comments-plus%2Fcomments-plus.php&_error_nonce=b5698a8354

Resulting in of course in a "Plugin could not be activated because it triggered a fatal error." when I try to activate.

Now as the error seems to be twitter related and the only other plugin using twitter is floating social, Im guessing this is the problem?

If this is the case how do I get rid of all traces of floating social and get comments plus working. The only other social plugin I have installed is Ultimate FB (ive switched import FB comments off but they were on for a while).

Any help much appreciated. Ta