SOAP response error. "ERROR #5002: Cache error:METHOD DOES NOT EXIST"

Hello Experts,

I am working on SOAP WSDL, where I am getting below error, I could not figure out where the error is hitting in code. Error says,

"ERROR #6248: SOAP response is a SOAP fault: faultcode=Client faultstring=Badly formed SOAP Message faultactor= detail= <error xmlns="http://www.intersystems.com/trak/ws"> <text>ERROR #5002: Cache error: &lt;METHOD DOES NOT EXIST&gt;zXMLNew+1^Custom.ENXX.Integration.WebService.Schema.DemogData.1 *%New,Custom.ENXX.Integration.WebService.Schema.DemogData</text> </error>"

I don't have any method as such described in the error - "Custom.ENXX.Integration.WebService.Schema.DemogData"

Is this error occuring in WSDL? Any ideas are appreciated!

Below given is the SOAP class created:

Class TrakCare.NonPDSDemogUpdateSoap Extends %SOAP.WebClient [ ProcedureBlock ]
{
Parameter LOCATION = "http://enxxt2017dl.iscinternal.com:57772/trakcare/Custom.ENXX.Integratio...";
Parameter NAMESPACE = "http://www.intersystems.com/trak/ws";
Parameter OUTPUTTYPEATTRIBUTE = 1;
Parameter SECURITYIN = "ALLOW";
Parameter SERVICENAME = "NonPDSDemogUpdate";
Parameter SOAPVERSION = 1.1;

Method FindAndCheckPatient(patientNumber As %String, patientNumberType As %String, familyName As %String, givenNames As %String, dateOfBirth As %String, gender As %String) As %Integer [ Final, ProcedureBlock = 1, SoapBindingStyle = document, SoapBodyUse = literal, WebMethod ]
{
 Quit ..WebMethod("FindAndCheckPatient").Invoke($this,"http://www.intersystems.com/trak/ws/Custom.ENXX.Integration.WebService.N...",.patientNumber,.patientNumberType,.familyName,.givenNames,.dateOfBirth,.gender)
}

Method UpdateDemographics(patientId As %String, demogUpdates As ENLI.Intouch.TrakCare.s0.DemogData) As %Integer [ Final, ProcedureBlock = 1, SoapBindingStyle = document, SoapBodyUse = literal, WebMethod ]
{
 Quit ..WebMethod("UpdateDemographics").Invoke($this,"http://www.intersystems.com/trak/ws/Custom.ENXX.Integration.WebService.N...",.patientId,.demogUpdates)
}

}

--------

Below is a part of WSDL code -

<s:element name="UpdateDemographics">

<s:complexType>

<s:sequence>

<s:element minOccurs="0" name="patientId" type="s:long"/>

<s:element minOccurs="0" name="demogUpdates" type="s0:DemogData"/>

</s:sequence>

</s:complexType>

</s:element>

<s:complexType name="DemogData">

<s:sequence>

<s:element minOccurs="0" name="EthnicOrgin" type="s:string"/>

<s:element minOccurs="0" name="Religion" type="s:string"/>

<s:element minOccurs="0" name="EMailAddress" type="s:string"/>

</s:sequence>

</s:complexType>

<s:element name="UpdateDemographicsResponse">

<s:complexType>

<s:sequence>

<s:element name="UpdateDemographicsResult" type="s:long"/>

</s:sequence>

</s:complexType>