500 内部服务器错误

登录SHR2.0 输入用户名密码后很长时间弹出这个提示：
500 内部服务器错误服务器遇到了一个内部错误而无法完成请求。

org.jasig.cas.client.validation.TicketValidationException: ticket 'ST-12-wOrLSXLH1keY7RGGs9obleUaFvfe69atDpS-20' not recognized at org.jasig.cas.client.validation.Cas20ServiceTicketValidator.parseResponseFromServer(Cas20ServiceTicketValidator.java:86) at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.java:217) at org.jasig.cas.client.validation.AbstractTicketValidationFilter.doFilter(AbstractTicketValidationFilter.java:165) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) at com.apusic.web.container.FilterComponent.doFilter(Unknown Source) at com.apusic.web.container.FilterChainImpl.performFilter(Unknown Source) at com.apusic.web.container.FilterChainImpl.doFilter(Unknown Source) at org.jasig.cas.client.authentication.AuthenticationFilter.doFilter(AuthenticationFilter.java:116) at com.kingdee.bos.sso.client.filter.authentication.KDPortalAuthenticationFilter.doFilter(KDPortalAuthenticationFilter.java:90) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.sp