When I attempts to open a project plan in RTC web, occur the error below.

Hi!
When I attempts to open a project plan in RTC web, occur the error below.
Can someone help?

------error message-----
Plan property 'com.ibm.team.apt.attributes._com.scb.ams.workitem.attribute.timesheet.timecode_eh' with work item attribute 'com.scb.ams.workitem.attribute.timesheet.timecode_eh' I can not analyze it like.
com.ibm.team.apt.internal.common.PlanningConfigurationValidator.performValidation(PlanningConfigurationValidator.java:127)
com.ibm.team.apt.internal.common.PlanningConfigurationValidator.performValidationIfNeeded(PlanningConfigurationValidator.java:91)
com.ibm.team.apt.internal.service.IterationPlanService.validatePlanningConfiguration(IterationPlanService.java:1038)
sun.reflect.GeneratedMethodAccessor787.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
java.lang.reflect.Method.invoke(Method.java:611)
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.invoke(ExportProxyServiceRecord.java:361)
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.access$0(ExportProxyServiceRecord.java:347)
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord$ExportedServiceInvocationHandler.invoke(ExportProxyServiceRecord.java:56)
com.sun.proxy.$Proxy1261.validatePlanningConfiguration(Unknown Source)
com.ibm.team.apt.internal.service.rest.PlanRestService.getProjectConfiguration(PlanRestService.java:2018)
sun.reflect.GeneratedMethodAccessor783.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
java.lang.reflect.Method.invoke(Method.java:611)
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.invoke(ExportProxyServiceRecord.java:361)
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord.access$0(ExportProxyServiceRecord.java:347)
org.eclipse.soda.sat.core.internal.record.ExportProxyServiceRecord$ExportedServiceInvocationHandler.invoke(ExportProxyServiceRecord.java:56)
com.sun.proxy.$Proxy1389.getProjectConfiguration(Unknown Source)
sun.reflect.GeneratedMethodAccessor781.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37)
java.lang.reflect.Method.invoke(Method.java:611)
com.ibm.team.repository.servlet.AbstractTeamServerServlet.doModelledRestService(AbstractTeamServerServlet.java:527)
com.ibm.team.repository.servlet.AbstractTeamServerServlet.handleRequest2(AbstractTeamServerServlet.java:2198)
com.ibm.team.repository.servlet.AbstractTeamServerServlet.handleRequest(AbstractTeamServerServlet.java:1990)
com.ibm.team.repository.servlet.AbstractTeamServerServlet.service(AbstractTeamServerServlet.java:1800)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.eclipse.equinox.http.registry.internal.ServletManager$ServletWrapper.service(ServletManager.java:180)
org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:126)
org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:76)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.eclipse.equinox.servletbridge.BridgeServlet.service(BridgeServlet.java:120)
com.ibm.team.repository.server.servletbridge.JazzServlet.service(JazzServlet.java:74)
javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
com.ibm.team.repository.server.servletbridge.BridgeFilter.processDelegate(BridgeFilter.java:165)
com.ibm.team.repository.server.servletbridge.BridgeFilter.doFilter(BridgeFilter.java:198)
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:610)
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:339)
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:906)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:929)
java.lang.Thread.run(Thread.java:761)