FaceBook Error Upon Requesting Friend Request

Facebook Error Upon Sending Friend’s Request
I chatted with my high school classmate using my Facebook account. He told me to add all my high school batch mates to a group that he created. The group consists of about 200 persons. I was almost done sending names of 50 persons when suddenly an error message appeared: “This request can’t be sent.” Even if had sent a friend request to another person out of the group, the error still appeared. Can you help me fix it? Thanks.

This Request Can't Be Sent Do you know this user personally? To prevent misuse of Facebook, this request can't be sent. To learn more, please visit the Help Center. If you believe you're seeing this message in error, you can report the problem. Okay |
