The page that you created probably contains a dataview displaying 1 record.
Try to create an overview page with a datagrid or listview to display multiple records and connect this to the navigation. A second option would be to create a microflow that retrieves or creates a record in the entity that you created and then open this record in a page with a dataview.
Thank you Erwin for your quick respons. Yes, it is a dataview to input one record.
When I read your answer can I conclude that there is no standard facility in Mendix to create a new record in a template form?
If so, I will try to build this myself with a microflow.
If you click the error code in Studio Pro, you should be able to follow that link through to a page that has an example of the type of error you’re seeing and how to fix it: https://docs.mendix.com/refguide/consistency-errors-pages#error-example-1
When a page expects a context that is not passed to it from a calling page or a microflow, you will get consistency errors. The page needs to know which object to display (its context). There are two main ways to resolve this issue:
Both of these options are outlined in more detail at the link above.
I hope this helps!