Seach results are being redirected to proteted content message.

Good day,

I'm currently having an issue with the protected content redirecting my search attempts to a protected content message page.

A page to test this is here:

You can use the search bar at the top of the the page linked above.
If you are not logged in and you try searching for any term, even something that has no results, you're redirected to a protected content message.

I have granted support access to the site for 72 hours. Thank you in advance.

Kind Regards,