Failed to login into Testopia by Jenkins

I have Bugzilla with Testopia instance installed on a CentOS 6.5 system. I want to integrate it with Jenkins which is on my Windows 8 Instance. I am able to remotely login into Bugzilla instance. I have configured the Bugzilla instance in Jenkins Configure System but when I tried to execute a job that requires I get the following error:

Started by user anonymous [EnvInject] - Loading node environment variables. Building in workspace C:\Users\userabc.jenkins\jobs\Testopia Check\workspace 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:779) at hudson.model.Build$BuildExecution.build(Build.java:205) at hudson.model.Build$BuildExecution.doRun(Build.java:162) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:537) at hudson.model.Run.execute(Run.java:1741) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:98) at hudson.model.Executor.run(Executor.java:381) Caused by: org.apache.xmlrpc.client.XmlRpcClientException: Failed to parse server's response: The declaration for the entity "HTML.Version" must end with '>'. at org.apache.xmlrpc.client.XmlRpcStreamTransport.readResponse(XmlRpcStreamTransport.java:188) at org.apache.xmlrpc.client.XmlRpcStreamTransport.sendRequest(XmlRpcStreamTransport.java:156) at org.apache.xmlrpc.client.XmlRpcHttpTransport.sendRequest(XmlRpcHttpTransport.java:143) at org.apache.xmlrpc.client.XmlRpcSunHttpTransport.sendRequest(XmlRpcSunHttpTransport.java:69) at org.apache.xmlrpc.client.XmlRpcClientWorker.execute(XmlRpcClientWorker.java:56) at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:167) at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:137) at org.apache.xmlrpc.client.XmlRpcClient.execute(XmlRpcClient.java:126) at org.mozilla.testopia.service.xmlrpc.XmlRpcMiscService.login(XmlRpcMiscService.java:61) ... 11 more Caused by: org.xml.sax.SAXParseExceptionpublicId: -//W3C//DTD HTML 4.01 Transitional//EN; systemId: http://ift.tt/kTyqzh; lineNumber: 31; columnNumber: 3; The declaration for the entity "HTML.Version" must end with '>'. at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source) at org.apache.xmlrpc.client.XmlRpcStreamTransport.readResponse(XmlRpcStreamTransport.java:186) ... 19 more ERROR: Failed to login! Finished: FAILURE Please help in identifying what mistake I am making, thank you