Custom class widget is not displayed on any page with document properties

Widgets & Design

I am trying to recreate a booking app with the following youtube playlist https://www.youtube.com/playlist?list=PLegYPCD7QFt0066WjGoUT5jS4GT4mE3q2

The issue is with the home page and I cannot display any class that is retrived from the database

The fire base rules are deployed and there is one error from the web console (Uncaught Error: Invalid argument (index): "type").

What have you tried so far?

I have tried to request a single class document, but no widget is displayed.

Using another page still does not change the outcome.

If there is more than one document in the class collection, the first document is the only item in the dynamic children debug list.

Every time the home page is reloded the error displays "Another exception was thrown: Unexpected null value"

Did you check FlutterFlow's Documentation for this topic?

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