Error reading XMLStreamReader., Resolution: Verify the input data is correct

In the SOAP Execute, am getting the below error. Am able to execute with the same setup using Postman. In Postman, I am not using the WSDL. I have directly used the SOAP End point URL.

Failure: An exception occurred while executing the SOAP request, Reason: Error reading XMLStreamReader., Resolution: Verify the input data is correct