Thank you for reporting this issue. I would very much like to help you figure out what is causing this issue on your site but I will need more information to find the source of this problem you are having.
Can you please tell me if this happens when you first visit the settings page or only when you try to scan or save the settings (or any kind of form post to this page)?
Can you view the other two pages under this one (Firewall Options and View Quarantine)?
Can you please check the error_log files on your server to see if there is any explanation of this error that might help us determine the cause?
Do you have any other websites on this server or others that may or may not be having the same issue?
Any other relevant details about when this issue started and what you have already tried might be very useful. Please let me know what you find, especially in your error_log files, and I’m sure we can quickly get to the bottom of this and find a solution.
