getMplsGoldTrails SRD API is failing on Both OLD and NEW with different response

Request :
<maxDpDistanceInMeters>20000</maxDpDistanceInMeters>
<!-Optional:->
<maxExchangeDistanceInMeters>20000</maxExchangeDistanceInMeters>
<!-Optional:->
<bandwidth>512.0</bandwidth>
<!-Optional:->
<maxApDistanceInMeters>20000</maxApDistanceInMeters>
<!-Optional:->
<coordinateFormat>geo_wgs84</coordinateFormat>
</ser:getMplsGoldTrails>
</soapenv:Body>
</soapenv:Envelope>

Response on OLD .179:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>Fault occurred while processing.</faultstring>
<detail>
<ns1:NepFault xmlns:ns1="http://server.internal.api.srd.nep.mobinets.com/">
<errorCode xmlns:ns2="http://server.internal.api.srd.nep.mobinets.com/">-1</errorCode>
</ns1:NepFault>
</detail>
</soap:Fault>
</soap:Body>
</soap:Envelope>

Response on NEW .84:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>Error unmarshaling return; nested exception is:
java.io.InvalidClassException: org.springframework.web.client.HttpClientErrorException$BadRequest; local class incompatible: stream classdesc serialVersionUID = -2426390247171100057, local class serialVersionUID = -9213866914660150154</faultstring>
<detail>
<ns1:NepFault xmlns:ns1="http://server.internal.api.srd.nep.mobinets.com/">
<errorCode xmlns:ns2="http://server.internal.api.srd.nep.mobinets.com/">-1</errorCode>
</ns1:NepFault>
</detail>
</soap:Fault>
</soap:Body>
</soap:Envelope>