Welcome, I am Cory.
If someone has something against you, they may have reported the profile as fake or fraud. When this happens, then Facebook will ask you to prove yourself as real.
If you are getting this message when you login and not in your email, then you need to provide them with the information requested in order to get the account back.
I am sorry, but I wish I had better news.
If you have any other questions, please let me know Carmella.
Please let me know if you need further help with this. If not, please do not froget to rate my answer above.