OX 7.8.3 The calendar is currently under maintenance. Please try again later

[Q-data]

Hi there,

since a while I can't add any events anymore. System gives the following error. Someone an idea what the problem is? Thanks in advance.
The problem has occurred since I accidentally upgraded OX to version 7.10 in Debian Jesse, after other problems rolled back to 7.8.3.

com.openexchange.exception.OXException: APP-0112 Categories=SERVICE_DOWN Message='The calendar is currently under maintenance. Please try again later.' exceptionID=-1002174648-1738
com.openexchange.exception.locale: nl_NL
at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:176)
at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:166)
at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:139)
at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:127)
at com.openexchange.groupware.calendar.OXCalendarExceptionCodes.create(OXCalendarExceptionCodes.java:838)
at com.openexchange.calendar.CalendarMySQL.checkNotReadOnly(CalendarMySQL.java:5930)
at com.openexchange.calendar.CalendarMySQL.insertAppointment(CalendarMySQL.java:1752)
at com.openexchange.calendar.CalendarSql.insertAppointmentObject(CalendarSql.java:513)
at com.openexchange.calendar.CalendarSql.insertAppointmentObject(CalendarSql.java:117)
at com.openexchange.calendar.api.TransactionallyCachingCalendar.insertAppointmentObject(TransactionallyCachingCalendar.java:213)
at com.openexchange.calendar.itip.NotifyingCalendar.insertAppointmentObject(NotifyingCalendar.java:324)
at com.openexchange.calendar.itip.ITipConsistencyCalendar.insertAppointmentObject(ITipConsistencyCalendar.java:293)
at com.openexchange.calendar.json.actions.NewAction.perform(NewAction.java:125)
at com.openexchange.calendar.json.actions.AppointmentAction.perform(AppointmentAction.java:158)
at com.openexchange.ajax.requesthandler.DefaultDispatcher.doCallAction(DefaultDispatcher.java:329)
at com.openexchange.ajax.requesthandler.DefaultDispatcher.callAction(DefaultDispatcher.java:305)
at com.openexchange.ajax.requesthandler.DefaultDispatcher.perform(DefaultDispatcher.java:218)
at com.openexchange.ajax.requesthandler.DispatcherServlet.handle(DispatcherServlet.java:469)
at com.openexchange.ajax.requesthandler.DispatcherServlet.doPut(DispatcherServlet.java:374)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:730)
at com.openexchange.ajax.AJAXServlet.doService(AJAXServlet.java:545)
at com.openexchange.ajax.SessionServlet.doService(SessionServlet.java:173)
at com.openexchange.ajax.requesthandler.DispatcherServlet.service(DispatcherServlet.java:269)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:445)
at com.openexchange.http.grizzly.servletfilter.RequestReportingFilter.doFilter(RequestReportingFilter.java:135)
at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:435)
at com.openexchange.http.grizzly.servletfilter.WrappingFilter.doFilter(WrappingFilter.java:206)
at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:435)
at com.openexchange.http.grizzly.service.http.OSGiAuthFilter.doFilter(OSGiAuthFilter.java:140)
at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:435)
at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.invokeFilterChain(OSGiServletHandler.java:413)
at org.glassfish.grizzly.servlet.ServletHandler.doServletService(ServletHandler.java:252)
at org.glassfish.grizzly.servlet.ServletHandler.service(ServletHandler.java:194)
at com.openexchange.http.grizzly.service.http.OSGiMainHandler.service(OSGiMainHandler.java:232)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:164)
at org.glassfish.grizzly.http.server.HttpHandlerChain.service(HttpHandlerChain.java:196)
at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:164)
at org.glassfish.grizzly.http.server.OXHttpServerFilter.handleRead(OXHttpServerFilter.java:363)
at org.glassfish.grizzly.filterchain.ExecutorResolver$9.execute(ExecutorResolver.java:119)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:265)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:200)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:134)
at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:112)
at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:78)
at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:770)
at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:112)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$100(WorkerThreadIOStrategy.java:55)
at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$WorkerThreadRunnable.run(WorkerThreadIOStrategy.java:135)
at com.openexchange.threadpool.internal.CustomThreadPoolExecutor$MDCProvidingRunnable.run(CustomThreadPoolExecutor.java:2524)
at com.openexchange.threadpool.internal.CustomThreadPoolExecutor$Worker.runTask(CustomThreadPoolExecutor.java:836)
at com.openexchange.threadpool.internal.CustomThreadPoolExecutor$Worker.run(CustomThreadPoolExecutor.java:863)
at java.lang.Thread.run(Thread.java:748)