Redirect Triggering when it should not

Hi, We have used this plugin for a while without issue.
I have duplicated the live site http://www.warrington-worldwide.co.uk to a dev version – https://devwarrington.wpengine.com/ on WPEngine, so that we can do some updates.
However, the plugin seems to be stopping the site from loading – it automatically diverts to https://devwarrington.wpengine.com/2022/08/30/man-51-arrested-on-suspicion-of-affray-following-disturbance-at-lower-walton/ when it should not.

Any ideas why this is and how to fix it please?
Thanks
Bill

The page I need help with: [log in to see the link]