upgrade from 6.22.0 auf 6.22.7?

[user1378]

halli hallo,

ich habe von meiner 6.22.0-version auf die neuste version versucht upzugrade (6.22.7?). bin die upgrade-anleitung genau durchgegangen. habe auch open-xchange-grizzly installiert und deren anleitung befolgt.
auch habe ich die manuellen einträge in /opt/open-xchange/etc/* wieder hergestellt (nach apt-get dist-upgrade)
doch leider kann ich mich nicht anmelden.

ich bekomme immer folgende meldung (in roter schrift unterhalb dem anmelde-fenster):
"Fehler: The server is currently down for maintenance. Please try again later."

das logfile ist auch nicht wirklich aussagekräftig:

INFO: Login:username IP:88.71.164.196 AuthID:a093606e-b14b-4f28-875b-96ee3d8dd6c5 Agent:Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0 Client:com.openexchange.ox.gui.dhtml(6.22.7 Rev7) Interface:HTTP_JSON No session created.
 com.openexchange.ajax.action=login
 com.openexchange.ajax.requestNumber=2
 com.openexchange.grizzly.remoteAddress=88.71.164.196
 com.openexchange.grizzly.remotePort=36843
 com.openexchange.grizzly.requestIp=88.71.164.196
 com.openexchange.grizzly.requestURI=/ajax/login
 com.openexchange.grizzly.serverName=servername.example.org
 com.openexchange.grizzly.servletPath=/ajax/login
 com.openexchange.grizzly.threadName=OXWorker-0000007
 com.openexchange.grizzly.userAgent=Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0
 com.openexchange.login.authId=a093606e-b14b-4f28-875b-96ee3d8dd6c5
 com.openexchange.login.client=com.openexchange.ox.gui.dhtml
 com.openexchange.login.clientIp=88.71.164.196
 com.openexchange.login.login=username
 com.openexchange.login.userAgent=Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0
 com.openexchange.login.version=6.22.7 Rev7
 com.openexchange.request.trackingId=801b73b0bb0b4faeb73325104b2cb80b
Aug 25, 2014 14:49:45 PM com.openexchange.ajax.login.AbstractLoginRequestHandler.loginOperation(AbstractLoginRequestHandler.java:210)
ERROR: 
 com.openexchange.ajax.action=login
 com.openexchange.ajax.requestNumber=2
 com.openexchange.grizzly.remoteAddress=88.71.164.196
 com.openexchange.grizzly.remotePort=36843
 com.openexchange.grizzly.requestIp=88.71.164.196
 com.openexchange.grizzly.requestURI=/ajax/login
 com.openexchange.grizzly.serverName=server.example.org
 com.openexchange.grizzly.servletPath=/ajax/login
 com.openexchange.grizzly.threadName=OXWorker-0000007
 com.openexchange.grizzly.userAgent=Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0
 com.openexchange.login.authId=a093606e-b14b-4f28-875b-96ee3d8dd6c5
 com.openexchange.login.client=com.openexchange.ox.gui.dhtml
 com.openexchange.login.clientIp=88.71.164.196
 com.openexchange.login.login=username
 com.openexchange.login.userAgent=Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0
 com.openexchange.login.version=6.22.7 Rev7
 com.openexchange.request.trackingId=801b73b0bb0b4faeb73325104b2cb80b
com.openexchange.exception.OXException: CTX-0007 Categories=TRY_AGAIN Message='Updating database ... Try again later.' exceptionID=2059891101-3
	at com.openexchange.exception.OXException.fillInStackTrace(OXException.java:398)
	at java.lang.Throwable.<init>(Throwable.java:241)
	at java.lang.Exception.<init>(Exception.java:77)
	at com.openexchange.exception.OXException.<init>(OXException.java:361)
	at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:164)
	at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:134)
	at com.openexchange.exception.OXExceptionFactory.create(OXExceptionFactory.java:122)
	at com.openexchange.groupware.contexts.impl.ContextExceptionCodes.create(ContextExceptionCodes.java:167)
	at com.openexchange.groupware.contexts.impl.ContextStorage.getContext(ContextStorage.java:131)
	at com.openexchange.context.internal.ContextServiceImpl.getContext(ContextServiceImpl.java:80)
	at com.openexchange.authentication.database.impl.DatabaseAuthentication.handleLoginInfo(DatabaseAuthentication.java:129)
	at com.openexchange.authentication.service.Authentication.login(Authentication.java:89)
	at com.openexchange.login.internal.NormalLoginMethod.doAuthentication(NormalLoginMethod.java:77)
	at com.openexchange.login.internal.LoginPerformer.doLogin(LoginPerformer.java:169)
	at com.openexchange.login.internal.LoginPerformer.doLogin(LoginPerformer.java:134)
	at com.openexchange.login.internal.LoginPerformer.doLogin(LoginPerformer.java:130)
	at com.openexchange.ajax.login.Login$1.doLogin(Login.java:109)
	at com.openexchange.ajax.login.AbstractLoginRequestHandler.loginOperation(AbstractLoginRequestHandler.java:123)
	at com.openexchange.ajax.login.Login.doLogin(Login.java:97)
	at com.openexchange.ajax.login.Login.handleRequest(Login.java:90)
	at com.openexchange.ajax.LoginServlet.doJSONAuth(LoginServlet.java:694)
	at com.openexchange.ajax.LoginServlet.doGet(LoginServlet.java:677)
	at com.openexchange.ajax.LoginServlet.doPost(LoginServlet.java:773)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
	at com.openexchange.ajax.AJAXServlet.service(AJAXServlet.java:526)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
	at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:408)
	at com.openexchange.http.grizzly.servletfilter.RequestReportingFilter.doFilter(RequestReportingFilter.java:120)
	at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:398)
	at com.openexchange.http.grizzly.servletfilter.WrappingFilter.doFilter(WrappingFilter.java:209)
	at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:398)
	at com.openexchange.http.grizzly.service.http.OSGiAuthFilter.doFilter(OSGiAuthFilter.java:140)
	at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.doFilter(OSGiServletHandler.java:398)
	at com.openexchange.http.grizzly.service.http.OSGiServletHandler$FilterChainImpl.invokeFilterChain(OSGiServletHandler.java:376)
	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:189)
	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:351)
	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$MDCProvidingRunnable.run(CustomThreadPoolExecutor.java:2500)
	at com.openexchange.threadpool.internal.CustomThreadPoolExecutor$Worker.runTask(CustomThreadPoolExecutor.java:817)
	at com.openexchange.threadpool.internal.CustomThreadPoolExecutor$Worker.run(CustomThreadPoolExecutor.java:844)
	at java.lang.Thread.run(Thread.java:662)

leider komme ich nicht mehr weiter.
das ganze läuft auf einem debian squeeze.
würde mich über jeden hinweis oder tipp freuen.
vielen dank.
grüße
1378