java.lang.RuntimeException: names do not exist: (AO_950DC3_TC_EVENTS, )

2015-04-21 16:04:42,420 WARN [UpmAsynchronousTaskManager:thread-2] [atlassian.plugin.manager.PluginEnabler] isFinished Plugin 'com.atlassian.confluence.plugins.confluence-questions' did not enable within 5 seconds.The plugin should not take this long to enable. Will only attempt to load plugin for another '25' seconds.
 -- url: /confluence/rest/plugins/1.0/ | userName: admin
2015-04-21 16:05:00,186 ERROR [team-calendars-worker-0] [extra.calendar3.util.DefaultAsynchronousTaskExecutor] call Exception happens on task execution:
java.lang.RuntimeException: names do not exist: (AO_950DC3_TC_EVENTS, )
	at com.atlassian.confluence.extra.calendar3.querydsl.DatabaseNameHelperImpl.getCaseSensitiveName(DatabaseNameHelperImpl.java:91)
	at com.atlassian.confluence.extra.calendar3.querydsl.DatabaseNameHelperImpl.getCaseSensitiveTableName(DatabaseNameHelperImpl.java:67)
	at com.atlassian.confluence.extra.calendar3.querydsl.mappings.AbstractRelationalPathBase.<init>(AbstractRelationalPathBase.java:14)
	at com.atlassian.confluence.extra.calendar3.querydsl.mappings.EventTable.<init>(EventTable.java:63)
	at com.atlassian.confluence.extra.calendar3.querydsl.QueryDSLMapper$4.apply(QueryDSLMapper.java:70)
	at com.atlassian.confluence.extra.calendar3.querydsl.QueryDSLMapper$4.apply(QueryDSLMapper.java:66)
	at com.atlassian.confluence.extra.calendar3.querydsl.QueryDSLMapper.getMapping(QueryDSLMapper.java:51)
	at com.atlassian.confluence.extra.calendar3.querydsl.QueryDSLMapper.getMapping(QueryDSLMapper.java:40)
	at com.atlassian.confluence.extra.calendar3.calendarstore.AbstractCalendarDataStore.getEventUpComingForReminder(AbstractCalendarDataStore.java:2359)
	at com.atlassian.confluence.extra.calendar3.calendarstore.AbstractCalendarDataStore.getSingleEventUpComingReminder(AbstractCalendarDataStore.java:2339)
	at com.atlassian.confluence.extra.calendar3.calendarstore.DelegatingCalendarDataStore.getSingleEventUpComingReminder(DelegatingCalendarDataStore.java:815)
	at com.atlassian.confluence.extra.calendar3.DefaultCalendarManager.getEventUpComingReminder(DefaultCalendarManager.java:1967)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
	at com.atlassian.plugins.spring.interceptor.plugin.ExportableInterceptorAdapter$WrappedMethodInvocation.proceed(ExportableInterceptorAdapter.java:53)
	at com.atlassian.plugins.spring.interceptor.spi.SpringInterceptorAdapter$SpringMethodInvocationAdapter.proceed(SpringInterceptorAdapter.java:50)
	at com.atlassian.spring.interceptors.SpringProfilingInterceptor.invoke(SpringProfilingInterceptor.java:16)
	at com.atlassian.plugins.spring.interceptor.spi.SpringInterceptorAdapter.invoke(SpringInterceptorAdapter.java:23)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:134)
	at com.sun.proxy.$Proxy313.invoke(Unknown Source)
	at com.atlassian.plugins.spring.interceptor.plugin.ExportableInterceptorAdapter.invoke(ExportableInterceptorAdapter.java:26)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:56)
	at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:39)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.osgi.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:59)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at com.sun.proxy.$Proxy2831.invoke(Unknown Source)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at com.sun.proxy.$Proxy2835.getEventUpComingReminder(Unknown Source)
	at com.atlassian.confluence.extra.calendar3.reminder.job.CalendarReminderJob$RemindEventForUserCollector$1.doInTransaction(CalendarReminderJob.java:89)
	at com.atlassian.confluence.extra.calendar3.reminder.job.CalendarReminderJob$RemindEventForUserCollector$1.doInTransaction(CalendarReminderJob.java:85)
	at com.atlassian.sal.core.transaction.HostContextTransactionTemplate$1.doInTransaction(HostContextTransactionTemplate.java:25)
	at com.atlassian.sal.spring.component.SpringHostContextAccessor$1.doInTransaction(SpringHostContextAccessor.java:88)
	at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)
	at com.atlassian.sal.spring.component.SpringHostContextAccessor.doInTransaction(SpringHostContextAccessor.java:82)
	at sun.reflect.GeneratedMethodAccessor234.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at com.atlassian.plugin.osgi.hostcomponents.impl.DefaultComponentRegistrar$ContextClassLoaderSettingInvocationHandler.invoke(DefaultComponentRegistrar.java:134)
	at com.sun.proxy.$Proxy311.doInTransaction(Unknown Source)
	at sun.reflect.GeneratedMethodAccessor234.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at com.atlassian.plugin.osgi.bridge.external.HostComponentFactoryBean$DynamicServiceInvocationHandler.invoke(HostComponentFactoryBean.java:154)
	at com.sun.proxy.$Proxy311.doInTransaction(Unknown Source)
	at com.atlassian.sal.core.transaction.HostContextTransactionTemplate.execute(HostContextTransactionTemplate.java:21)
	at sun.reflect.GeneratedMethodAccessor245.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:483)
	at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.doInvoke(ServiceInvoker.java:58)
	at org.springframework.osgi.service.importer.support.internal.aop.ServiceInvoker.invoke(ServiceInvoker.java:62)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invokeUnprivileged(ServiceTCCLInterceptor.java:56)
	at org.springframework.osgi.service.util.internal.aop.ServiceTCCLInterceptor.invoke(ServiceTCCLInterceptor.java:39)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.osgi.service.importer.support.LocalBundleContextAdvice.invoke(LocalBundleContextAdvice.java:59)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
	at org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	at com.sun.proxy.$Proxy2828.execute(Unknown Source)
	at com.atlassian.confluence.extra.calendar3.reminder.job.CalendarReminderJob$RemindEventForUserCollector.call(CalendarReminderJob.java:84)
	at com.atlassian.confluence.extra.calendar3.reminder.job.CalendarReminderJob$RemindEventForUserCollector.call(CalendarReminderJob.java:79)
	at com.atlassian.confluence.extra.calendar3.util.DefaultAsynchronousTaskExecutor$2.call(DefaultAsynchronousTaskExecutor.java:80)
	at com.atlassian.confluence.extra.calendar3.util.DefaultAsynchronousTaskExecutor$1.call(DefaultAsynchronousTaskExecutor.java:68)
	at com.atlassian.sal.core.executor.ThreadLocalDelegateCallable.call(ThreadLocalDelegateCallable.java:42)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
2015-04-21 16:05:00,430 ERROR [team-calendars-worker-0] [extra.calendar3.util.DefaultAsynchronousTaskExecutor] call Exception in task submitted from thread team-calendars-worker-0 here:
java.lang.Exception: Client stack trace
	at com.atlassian.confluence.extra.calendar3.util.DefaultAsynchronousTaskExecutor.clientTrace(DefaultAsynchronousTaskExecutor.java:90)
	at com.atlassian.confluence.extra.calendar3.util.DefaultAsynchronousTaskExecutor.access$200(DefaultAsynchronousTaskExecutor.java:17)
	at com.atlassian.confluence.extra.calendar3.util.DefaultAsynchronousTaskExecutor$1.call(DefaultAsynchronousTaskExecutor.java:68)
	at com.atlassian.sal.core.executor.ThreadLocalDelegateCallable.call(ThreadLocalDelegateCallable.java:42)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
2015-04-21 16:05:07,428 INFO [UpmAsynchronousTaskManager:thread-2] [atlassian.plugin.manager.DefaultPluginManager] notifyPluginDisabled Disabling com.atlassian.confluence.plugins.confluence-questions
2015-04-21 16:05:17,437 ERROR [UpmAsynchronousTaskManager:thread-2] [internal.util.concurrent.RunnableTimedExecution] execute Closing runnable for context NonValidatingOsgiBundleXmlApplicationContext(bundle=com.atlassian.confluence.plugins.confluence-questions, config=osgibundle:/META-INF/spring/*.xml) did not finish in 10000ms; consider taking a snapshot and then shutdown the VM in case the thread still hangs
 -- url: /confluence/rest/plugins/1.0/ | userName: admin