Hi ,Can you guys help me out with this issue

This is the error message user is getting when he tries to open any document.Operating System is Vista.Looking forward for replies and resolutions ...

thanks

null

class com.documentum.web.contentxfer.ucf.UcfSessionManager$ClientException

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Stack Trace:

com.documentum.web.contentxfer.ucf.UcfSessionManager$ClientException

at com.documentum.web.contentxfer.ucf.UcfSessionManager.newSession(UcfSessionManager.java:425)

at com.documentum.web.contentxfer.ucf.UcfSessionManager.getSession(UcfSessionManager.java:137)

at com.documentum.web.contentxfer.ucf.UcfContentTransport.getUcfSession(UcfContentTransport.java:194)

at com.documentum.web.contentxfer.ucf.UcfContentTransport.<init>(UcfContentTransport.java:67)

at sun.reflect.GeneratedConstructorAccessor168.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:494)

at java.lang.Class.newInstance0(Class.java:350)

at java.lang.Class.newInstance(Class.java:303)

at com.documentum.webcomponent.library.contenttransfer.ContentTransferServiceContainer.createTransport(ContentTransferServiceContainer.java:654)

at com.documentum.webcomponent.library.contenttransfer.export.ExportContainer.createTransport(ExportContainer.java:154)

at com.documentum.webcomponent.library.contenttransfer.view.ViewContainer.createTransport(ViewContainer.java:58)

at com.documentum.webcomponent.library.contenttransfer.ContentTransferServiceContainer.invokeService(ContentTransferServiceContainer.java:280)

at com.documentum.webcomponent.library.contenttransfer.ContentTransferServiceContainer.invokeService(ContentTransferServiceContainer.java:267)

at com.documentum.webcomponent.library.contenttransfer.ContentTransferServiceContainer.tryCommitChanges(ContentTransferServiceContainer.java:247)

at com.documentum.webcomponent.library.contenttransfer.view.ViewContainer.onInit(ViewContainer.java:49)

at com.documentum.web.form.FormProcessor.invokeMethod(FormProcessor.java:1546)

at com.documentum.web.form.FormProcessor.fireOnInitEvent(FormProcessor.java:1126)

at com.documentum.web.form.FormOperation.requestOnInitEvent(FormOperation.java:159)

at com.documentum.web.form.JumpOperation.execute(JumpOperation.java:111)

at com.documentum.web.form.FormProcessor.openForm(FormProcessor.java:216)

at com.documentum.web.form.WebformTag.doStartTag(WebformTag.java:126)

at jsp_servlet._wdk._container.__combocontainer._jsp__tag2(__combocontainer.java:217)

at jsp_servlet._wdk._container.__combocontainer._jsp__tag1(__combocontainer.java:187)

at jsp_servlet._wdk._container.__combocontainer._jsp__tag0(__combocontainer.java:143)

at jsp_servlet._wdk._container.__combocontainer._jspService(__combocontainer.java:111)

at weblogic.servlet.jsp.JspBase.service(JspBase.java:34)

at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)

at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)

at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:283)

at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)

at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)

at com.documentum.web.servlet.ResponseHeaderControlFilter.doFilter(ResponseHeaderControlFilter.java:318)

at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)

at com.documentum.web.servlet.CompressionFilter.doFilter(CompressionFilter.java:114)

at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)

at com.documentum.web.env.WDKController.processRequest(WDKController.java:95)

at com.documentum.web.env.WDKController.doFilter(WDKController.java:83)

at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)

at weblogic.servlet.internal.RequestDispatcherImpl.invokeServlet(RequestDispatcherImpl.java:526)

at weblogic.servlet.internal.RequestDispatcherImpl.include(RequestDispatcherImpl.java:454)

at com.documentum.web.form.FormProcessor.dispatchURL(FormProcessor.java:2091)

at com.documentum.web.formext.component.URLDispatchBridge.dispatch(URLDispatchBridge.java:107)

at com.documentum.web.formext.component.ComponentDispatcher.mapRequestToComponent(ComponentDispatcher.java:475)

at com.documentum.web.formext.component.ComponentDispatcher.doPost(ComponentDispatcher.java:342)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:763)

at com.documentum.web.formext.component.ComponentDispatcher.doService(ComponentDispatcher.java:303)

at com.documentum.web.formext.component.ComponentDispatcher.serviceAsNonController(ComponentDispatcher.java:141)

at com.documentum.web.formext.component.ComponentDispatcher.service(ComponentDispatcher.java:122)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)