Cannot send SOAP Request through Katalon

Hi

When i am trying to send the SOAP request using WSDL url , I am getting the below error -
java.net.MalformedURLException
at com.kms.katalon.core.webservice.common.SoapClient.send(SoapClient.java:150)
at com.kms.katalon.controller.WebServiceController.sendRequest(WebServiceController.java:107)
at com.kms.katalon.composer.webservice.parts.SoapServicePart$4.run(SoapServicePart.java:232)
at org.eclipse.jface.operation.ModalContext$ModalContextThread.run(ModalContext.java:119)
Caused by: java.lang.NullPointerException

Can you please help me to resolve this issue and let me know if any workaround. I am able to Load the service functions from WSDL but cannot send the request.