When someone visits a mobilized page they get a message that the page does not exist

My website has been mobilized using duda mobile. When people enter the main url for the site using mobile phones they get to the mobile site without a problem. However when I send a link to a specific page of the web site that has also been mobilized then they get a message on their cell phone that that page does not exist. This happens very regularly. The last person was using an iPhone 6.

Can someone tell me how to fix this problem?