Can't do any with page with 4 expand macros

Hello,

eralier I created blank page, now I modified it and create at blank page four standart expand macroses ( insert - other macros - expand ). After add I save this page and can't do anything else. I try to add text or other macroses, I try to delete exist macroses from page - nothing not change. At server logs I got stacktrace with 600(!!!) lines code :

action: doeditpage
java.lang.ClassCastException: com.atlassian.confluence.user.PersonalInformation cannot be cast to com.atlassian.confluence.pages.AbstractPage
at com.atlassian.confluence.pages.persistence.dao.hibernate.HibernateAbstractPageDao.getAbstractPageById(HibernateAbstractPageDao.java:18)
at sun.reflect.GeneratedMethodAccessor1022.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy42.getAbstractPageById(Unknown Source)

Full stacktrace log I add to attach to this message