I've have exported my muse project and then used Dreamweaver to edit local links as I have manually changed the file structure of my project. For example:
From:
https://www.espionagemissions.com/team-building-in-covent-garden.html
To:
https://www.espionagemissions.com/team-building-in-london/team-building-in-covent-garden.h tml
Despite pouring through the HTML numerous times I am till getting the same error. This issue is restricted to pages I have manually changed (as described *** above).