Redirects to the wrong page

Hello!

Since installing this plugin i made the modifications (also bought the premium version) the plugin is redirecting to the wrong pages.

For example:
https://www.fiezta.nl/product-categorie/bruiloft/gastenboek/

Should obviously become
https://www.fiezta.nl/bruiloft/gastenboek/

But instead of that it is somehow redirecting it to a completely different page, to a product page non the less.
https://www.fiezta.nl/bruiloft/gastenboek/gastenboek-20-5-x-20-5cm-22-pages/

I see no reason why this is happening.

My kingdom for a solution ??

Thank you!

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