How do I solve Wordpress Social Login plugin conflict with Comments Plus plugin

I use a log in plugin called "Wordpress Social Login" to let new users in my wordpress installation through Facebook.

Since I installed the Comments Plus plugin, whenever I or anyone tries to log in via the Wordpress Social Login plugin we get the following error:

Fatal error: Call to undefined method Facebook::setExtendedAccessToken() in /home/youthkia/public_html/XXXXX/wp-content/plugins/wordpress-social-login/hybridauth/Hybrid/Providers/Facebook.php on line 40

I even tried activating the "Alternative Facebook Initialization" option in Comments Plus but nothing is working out.

Could someone help me figure this out?