Hi ,
We are using jboss portal . some times portal home page will not come . for long time
but i can access the jboss application . but the not the portal pages .

after long time i am getting error message . this will not hpn always only some times it is hpning . can any one help me how to resolve this problem as our application is going live in few days . this problem i am not able to resolve

13:11:41,243 ERROR [LazyInitializationException] failed to lazily initialize a collection of role: org.jboss.portal.core.impl.portlet.state.PersistentPortletState.entries, no session or session was closed
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jboss.portal.core.impl.portlet.state.PersistentPortletState.entries, no session or session was closed
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
at org.hibernate.collection.AbstractPersistentCollection.readElementByIndex(AbstractPersistentCollection.java:151)
at org.hibernate.collection.PersistentMap.get(PersistentMap.java:146)
at org.jboss.portal.common.util.AbstractTypedMap.get(AbstractTypedMap.java:273)
at org.jboss.portal.portlet.state.AbstractPropertyMap.getProperty(AbstractPropertyMap.java:48)
at org.jboss.portal.portlet.state.AbstractPropertyContext.getValue(AbstractPropertyContext.java:123)
at org.jboss.portal.portlet.impl.jsr168.api.PortletPreferencesImpl.getValue(PortletPreferencesImpl.java:143)
at org.jboss.portal.portlet.impl.jsr168.api.PortletPreferencesImpl.getValue(PortletPreferencesImpl.java:182)
at org.jboss.portal.core.cms.ui.CMSPortlet.doHeaders(CMSPortlet.java:381)
at javax.portlet.GenericPortlet.render(GenericPortlet.java:228)
at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl$Invoker.doFilter(PortletContainerImpl.java:568)
at org.jboss.portal.portlet.impl.jsr168.api.FilterChainImpl.doFilter(FilterChainImpl.java:159)
at org.jboss.portlet.filter.JBossPortletFilter.doFilter(JBossPortletFilter.java:79)
at org.jboss.portal.portlet.impl.jsr168.api.FilterChainImpl.doFilter(FilterChainImpl.java:159)
at org.jboss.portal.portlet.impl.jsr168.api.FilterChainImpl.doFilter(FilterChainImpl.java:80)
at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.dispatch(PortletContainerImpl.java:505)
at org.jboss.portal.portlet.container.ContainerPortletDispatcher.invoke(ContainerPortletDispatcher.java:42)
at org.jboss.portal.portlet.PortletInvokerInterceptor.invoke(PortletInvokerInterceptor.java:82)
at org.jboss.portal.core.aspects.portlet.TransactionInterceptor.org$jboss$portal$core$aspects$portlet$TransactionInterceptor$invokeNotSupported$aop(TransactionInterceptor.java:97)
at