If you can’t access your Page, first check to see if another admin of the Page may have removed you. The best thing you can do is contact a Page admin and ask them to add you back.
NOTE: there are different kinds of Page roles, and only admins can add or remove people.
Pages can only be accessed through a personal account that belongs to an admin. If you think your Page was taken over by someone else, it may mean that your personal account or the account of someone who works on your Page was hacked.Your account may have been hacked if you notice;
- Your email or password has been changed.
- Your name or birthday has been changed.
- Friend requests have been sent to people you don’t know.
- Messages have been sent that you didn’t write.
- Posts have been made that you didn’t create.
If your personal account was hacked, Facebook can help you secure it. If you think someone else who works on your Page was hacked, please tell them to go to the Hacked Accounts section of the Help Center to get immediate help.Keep in mind that you may have also lost access to your Page if you’re not the authorized representative of the Page’s subject or content, or if your Page was reported and removed for infringing someone’s intellectual property rights.