When we try to stop the closed loop it crashes in the backend and UI got this error:

cldsPerformAction: pars=java.lang.NullPointerException: text at java.util.Objects.requireNonNull(Objects.java:228) at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1848) at java.time.ZonedDateTime.parse(ZonedDateTime.java:597) at org.onap.clamp.clds.util.LoggingUtils.exiting(LoggingUtils.java:237) at org.onap.clamp.flow.log.FlowLogOperation.errorLog(FlowLogOperation.java:78) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.camel.component.bean.MethodInfo.invoke(MethodInfo.java:481) at org.apache.camel.component.bean.MethodInfo$1.doProceed(MethodInfo.java:300) at org.apache.camel.component.bean.MethodInfo$1.proceed(MethodInfo.java:273) at org.apache.camel.component.bean.AbstractBeanProcessor.process(AbstractBeanProcessor.java:198) at org.apache.camel.component.bean.BeanProcessor.process(BeanProcessor.java:53) at org.apache.camel.component.bean.BeanProducer.process(BeanProducer.java:41) at org.apache.camel.processor.SendProcessor.process(SendProcessor.java:148) at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:181) at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) at org.apache.camel.processor.Pipeline.process(Pipeline.java:138) at org.apache.camel.processor.Pipeline.process(Pipeline.java:101) at org.apache.camel.processor.CatchProcessor.process(CatchProcessor.java:107) at org.apache.camel.processor.TryProcessor.process(TryProcessor.java:113) at org.apache.camel.processor.TryProcessor.process(TryProcessor.java:84) at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:181) at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) at org.apache.camel.processor.Pipeline.process(Pipeline.java:138) at org.apache.camel.processor.Pipeline.process(Pipeline.java:101) at org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:201) at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:97) at org.apache.camel.http.common.CamelServlet.doService(CamelServlet.java:213) at org.onap.clamp.clds.ClampServlet.doService(ClampServlet.java:130) at org.apache.camel.http.common.CamelServlet.service(CamelServlet.java:79) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.onap.aaf.cadi.filter.SideChain.doFilter(SideChain.java:70) at org.onap.aaf.cadi.filter.CadiFilter.doFilter(CadiFilter.java:283) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748)