When trying to create a Debezium connector there's "Error Handling" step enabled and displayed by default. When user fills in the "Core" step then the error handling step is hidden and replaced by the particular Debezium parts.

If user clicks on the error handling step then a g is undefined error message is shown, but the user is able to return back to the step they were editing and correct continue in creating the connector.
Peek 2023-01-04 12-09.webm