bug when broadcasting a post 2nd or 3rd time

[user1221]

Catchable fatal error: Object of class stdClass could not be converted to string in /wp-includes/formatting.php on line 716

when i try to share post 2nd or may be 3rd time this error comes , one more thing is that in editing mode of this post in the social media broadcasting panel i see my twitter account is shown 2 times and facebook account is also shown two times may be this is a error both accounts must be shown one time each only.