- It could have been protected because it is a high traffic or important page,
- There could have been an edit war,
- Or the page could have been a constant target for spammers or vandals.
If you believe that this protection is unjust, please contact an administrator. Remember, if a page is semi-protected, then autoconfirmed users (users who are at least 4 days old,) and sysops can edit the page. If a page is fully protected, then sysops are the only users who can edit the page.
You are not allowed to execute the action you have requested.