Error When Pushing to databae

Hello, I am beginner to Appian. I am getting an error from my process model when I start publishing. The error is:

Details: java.lang.IllegalArgumentException: The record to be saved must not be null: TypedValue[it=4570,v=<null>] Data: TypedValue[it=4570,v=<null>]

From other threads are saying one of my values is null which isnt the case nothing is null in the cdt and all of the fields are mapped on the interface. Any thoughts? 

Is there a way to tell what field is giving this issue, again very new so as much details would be helpful. 

Thanks!

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