Error - 
Connecting to Testopia to retrieve automated test cases
java.lang.RuntimeException: Failed to login!
at org.mozilla.testopia.service.xmlrpc.XmlRpcMiscService.login(XmlRpcMiscService.java:63)
at org.mozilla.testopia.TestopiaAPI.login(TestopiaAPI.java:106)
at jenkins.plugins.testopia.TestopiaBuilder.perform(TestopiaBuilder.java:214)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
at hudson.model.Build$BuildExecution.build(Build.java:206)
at hudson.model.Build$BuildExecution.doRun(Build.java:163)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504)
at hudson.model.Run.execute(Run.java:1794)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:429)
Caused by: org.apache.xmlrpc.client.XmlRpcClientException: Failed to parse server's response: The declaration for the entity "HTML.Version" must end with '>'.
at org.apache.xmlrpc.client.XmlRpcStreamTransport.readResponse(XmlRpcStreamTransport.java:188)
at org.apache.xmlrpc.client.XmlRpcStreamTransport.sendRequest(XmlRpcStreamTransport.java:156)
at org.apache.xmlrpc.client.XmlRpcHttpTransport.sendRequest(XmlRpcHttpTransport.java:143)
at org.apache.xmlrpc.client.XmlRpcSunHttpTransport.sendRequest(XmlRpcSunHttpTransport.java:69)
at org.apache.xmlrpc.client.XmlRpcClientWorker.execute(XmlRpcClientWorker.java:56)
at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:167)
at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:137)
at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:126)
at org.mozilla.testopia.service.xmlrpc.XmlRpcMiscService.login(XmlRpcMiscService.java:61)
... 11 more
Caused by: org.xml.sax.SAXParseExceptionpublicId: -//W3C//DTD HTML 4.01 Transitional//EN; systemId: 
http://www.w3.org/TR/html4/loose.dtd;
lineNumber: 31; columnNumber: 3; The declaration for the entity "HTML.Version" must end with '>'.
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1239)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
at org.apache.xmlrpc.client.XmlRpcStreamTransport.readResponse(XmlRpcStreamTransport.java:186)
... 19 more
ERROR: Failed to login!