[OpenSER-Users] [Wesip] Ringtone application

Hello! Have anyone tried the ringtone app on wesip page? I rewrote it, however mine crashes, but so does wesip one. I'm suspecting a bug somewhere else that those two application, but I'm having trouble debugging, since it doesn't show exactly where is the problem: ---- SipProcessor [SipProcessor[4]] - error processing event... java.lang.NullPointerException at com.voztele.sipservlet.deploy.rules.StandardSipServletMapping.evaluate(StandardSipServletMapping.java:39) at com.voztele.sipservlet.core.ConvergedHost.map(ConvergedHost.java:104) at com.voztele.sipservlet.core.SipHostMapper.map(SipHostMapper.java:123) at org.apache.catalina.core.ContainerBase.map(ContainerBase.java:967) at com.voztele.sipservlet.valves.ConvergedHostValve.invokeSipRequest(ConvergedHostValve.java:267) at com.voztele.sipservlet.valves.ConvergedHostValve.invokeSIP(ConvergedHostValve.java:126) at com.voztele.sipservlet.valves.ConvergedHostValve.invoke(ConvergedHostValve.java:104) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596) at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:124) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:946) at com.voztele.sipservlet.valves.ConvergedEngineValve.invoke(ConvergedEngineValve.java:114) at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596) at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433) at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:946) at com.voztele.sipservlet.processor.SipProcessor.invokeContainer(SipProcessor.java:198) at com.voztele.sipservlet.processor.SipProcessor.processRequest(SipProcessor.java:142) at com.voztele.sipservlet.processor.SipProcessor.process(SipProcessor.java:272) at com.voztele.sipservlet.processor.SipProcessor.run(SipProcessor.java:253) at java.lang.Thread.run(Thread.java:619) ---- How to discover what is blocking it from working? -- (\__/) (='.'=) (")_(")