MWS Analytic Engine issue

I am using webMethods7.1.2. When I started MWS,I got nested exception “java.lang.NoClassDefFoundError: com/webmethods/portal/portlet/wm_discotres_common/IForumConstants” and “could not bind to path: http://10.191.xx.xx:12503/services/rule.wsdl” or “could not bind to path: http://10.191.xx.xx:12503/services/monitor.wsdl”.
After logon to My webMethods,it says Analytic Engine have configuration problems. But I can not find anything wrong.
Could someone kindly give me suggestion?It’s an urgent issue on our product server.