Portlet temporaily unavailable message for Alfresco portlet in Liferay

I followed the steps on http://www.liferay.com/web开发者_开发百科/jonas.yuan/blog/-/blogs/integrating-alfresco-web-client-as-a-set-of-portlets-with-liferay to integrate alfresco as a portlet in Liferay 5.2.3. I am able to add the Alfresco portlet to my Liferay page, but it shows the message "Portlet is temporarily unavailable"

Any way to fix this ? Thank You.

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Usually, when you get that kind of error, it means that while starting the portlet a exception was thrown. It means that errors have occurred while startup.