Open-xchange: Anlegen von Context schlägt fehl (no valid filestore)

Nach der Erstellung eines neuen Contexts über das Web-UI wird der Server, auf dem OX läuft darüber via Directory-Listener informiert. Nun versucht dieser mittels /opt/open-xchange/sbin/createcontext einen neuen Context anzulegen. Leider schlägt das fehl mit der Meldung No usable or suitable filestore found.

Hat jemand eine Ahnung welcher Filestore hier gesucht wird und wie ich so einen bekommen kann?

/opt/open-xchange/sbin/createcontext --adminuser oxadminmaster --adminpass `cat /etc/ox-secrets/master.secret` --contextid 60 --contextname context60 --addmapping context60 --language en_US --timezone 'Europe/Berlin' --username oxadmin-context60 --displayname 'OX Admin' --givenname 'OX' --surname 'Admin' --email 'oxadmin-context60@connexion.evssn.de' --quota '-1' --password 'XXXXXXX' 
context 60 could not be created: 
Server response:
 No usable or suitable filestore found; exceptionId -1604571639-3916
	at com.openexchange.admin.storage.mysqlStorage.OXUtilMySQLStorage.findFilestoreForEntity(OXUtilMySQLStorage.java:1948)
	at com.openexchange.admin.storage.mysqlStorage.OXUtilMySQLStorage.findFilestoreForContext(OXUtilMySQLStorage.java:1810)
	at com.openexchange.admin.plugin.hosting.storage.mysqlStorage.OXContextMySQLStorage.create(OXContextMySQLStorage.java:1623)
	at com.openexchange.admin.plugin.hosting.rmi.impl.OXContext.createmaincall(OXContext.java:1242)
	at com.openexchange.admin.rmi.impl.OXContextCommonImpl.createcommon(OXContextCommonImpl.java:178)
	at com.openexchange.admin.plugin.hosting.rmi.impl.OXContext.create(OXContext.java:427)
	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:498)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:357)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:573)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:834)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:688)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:687)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:750)
	at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:303)
	at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:279)
	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:164)
	at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:235)
	at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:180)
	at com.sun.proxy.$Proxy0.create(Unknown Source)
	at com.openexchange.admin.console.context.Create.maincall(Create.java:155)
	at com.openexchange.admin.console.context.CreateCore.commonfunctions(CreateCore.java:149)
	at com.openexchange.admin.console.context.Create.execute(Create.java:94)
	at com.openexchange.admin.console.context.Create.main(Create.java:85)
/opt/open-xchange/sbin/listfilestore -A oxadminmaster  -P `cat /etc/ox-secrets/master.secret`
id path                    size reserved used max-entities cur-entities
 4 file:///var/oxfilestore 1000     1200    0         5000            6