org.bonitasoft.engine.core.process.instance.api.exceptions.SFlowNodeNotFoundException

Bonjour,j'ai cette erreur malgré que mon document passe par toutes les étapes,et les données sont insérées au niveau de la base à la fin de processus,mais j'aurais pas le document à l'état terminé.

[http-bio-8080-exec-3] INFO org.bonitasoft.engine.api.impl.ProcessAPIImpl$ExecuteFlowNode - THREAD_ID=66 | HOSTNAME=Lenovo-PC | TENANT_ID=1 | The user has executed the task [name = , display name = , id = <6>, parent process instance = <1>, root process instance = <1>, process definition = <8136895319716346603>] juil. 28, 2015 3:43:28 PM org.apache.catalina.core.StandardWrapperValve invoke GRAVE: Servlet.service() for servlet [engine] in context with path [/servicom] threw exception [Request processing failed; nested exception is org.bonitasoft.engine.bpm.data.DataNotFoundException: USERNAME=validator2 | org.bonitasoft.engine.core.process.instance.api.exceptions.SFlowNodeNotFoundException: Flow node instance with id 6 not found] with root cause org.bonitasoft.engine.core.process.instance.api.exceptions.SFlowNodeNotFoundException: Flow node instance with id 6 not found at org.bonitasoft.engine.core.process.instance.impl.FlowNodeInstancesServiceImpl.getFlowNodeInstance(FlowNodeInstancesServiceImpl.java:258) at org.bonitasoft.engine.api.impl.ProcessAPIImpl.getActivityDataInstance(ProcessAPIImpl.java:2667) at sun.reflect.GeneratedMethodAccessor92.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.bonitasoft.engine.api.impl.ServerAPIImpl.invokeAPI(ServerAPIImpl.java:363) at org.bonitasoft.engine.api.impl.ServerAPIImpl$1.call(ServerAPIImpl.java:332) at org.bonitasoft.engine.transaction.JTATransactionServiceImpl.executeInTransaction(JTATransactionServiceImpl.java:288) at org.bonitasoft.engine.api.impl.ServerAPIImpl.invokeAPIInTransaction(ServerAPIImpl.java:339) at org.bonitasoft.engine.api.impl.ServerAPIImpl.invokeAPI(ServerAPIImpl.java:274) at org.bonitasoft.engine.api.impl.ServerAPIImpl.invokeMethod(ServerAPIImpl.java:128) at org.bonitasoft.engine.api.impl.ClientInterceptor.invoke(ClientInterceptor.java:88) at com.sun.proxy.$Proxy32.getActivityDataInstance(Unknown Source) at com.servicom.service.impl.BonitaServiceImpl.listPendingTasks(BonitaServiceImpl.java:164) at com.servicom.controller.BonitaController.listPendingHumanTask(BonitaController.java:82) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:957) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:620) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source)

Merci d'avance