[infomafia]

If you're locked out of your Facebook account, there are a few things you can do to try and recover it. 

• Login with your FB login credential.
  
• Use Forget password option and generate new password.
  
• Use Facebook support section
  

If anything not works then read this blog to know more on this topic.
https://infomafia.net/how-to-recover-a-temporarily-locked-facebook-account/