Error in disabling staging in Liferay 6.1

[Kaleem Mohammed, geändert vor 11 Jahren.]

Hello,

I am trying to disable the staging using control panel -> site setting ->stagging -> none.

It is saying Site Settings is temporarily unavailable.] and when I check the log it is showing the below error in the log.

Any help is highly appreciated.
[e-mail]

13:06:20,490 ERROR [render_portlet_jsp:154] java.lang.NullPointerException
at java.util.Date.getMillisOf(Date.java:939)
at java.util.Date.before(Date.java:898)
at com.liferay.portlet.blogs.service.impl.BlogsStatsUserLocalServiceImpl.updateStatsUser(BlogsStatsUserLocalServiceImpl.java:215)
at com.liferay.portlet.blogs.service.impl.BlogsStatsUserLocalServiceImpl.updateStatsUser(BlogsStatsUserLocalServiceImpl.java:171)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:112)
at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
at com.liferay.portal.spring.aop.ServiceBeanAopProxy.invoke(ServiceBeanAopProxy.java:211)
at com.liferay.portlet.blogs.service.impl.BlogsEntryLocalServiceImpl.deleteEntry(BlogsEntryLocalServiceImpl.java:270)
at com.liferay.portlet.blogs.service.impl.BlogsEntryLocalServiceImpl.deleteEntries(BlogsEntryLocalServiceImpl.java:247)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:112)
at com.liferay.portal.spring.transaction.TransactionInterceptor.invoke(TransactionInterceptor.java:71)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)
at com.liferay.portal.spring.aop.ServiceBeanMethodInvocation.proceed(ServiceBeanMethodInvocation.java:108)
at com.liferay.portal.spring.aop.ChainableMethodAdvice.invoke(ChainableMethodAdvice.java:59)