Hello Omar Amer !
Did you get the email notification about it? If not did you clear the cache of your browser?
there was no email notification, and i have cleared my browser and the site cache at least 10 times since then. i still see +1 ! (!? ha ha.)
here is the +1 that wont go away. there are no new friend requests either. this +1 has been here now for 3-5 days.