Owncloud: 503 Service Unavailable - after upgrade from 10.0 to 10.2

Yesterday first i upgrade my Backup-Server to the latest UCS Version. Then i upgrade the owncloud instance but a error come up. Now in UCS App Center is shown “Installed 10.2” but when i will logon to my Cloud then the error 503 come up and no syncing is working anymore

How can I find out the reason and how can i fix it?


did you checked already if the relevant Docker instances are up- and running?

univention-app status owncloud -> should give you
App is running

docker ps -a -> should give you:
CONTAINER ID        IMAGE                                                                   COMMAND                  CREATED             STATUS              PORTS                     NAMES
d94338f18509        docker.software-univention.de/owncloud-owncloud:10.2.1-1                "/usr/bin/entrypoint…"   7 weeks ago         Up 2 weeks>8080/tcp   owncloud_owncloud_1
ba8b3af96102        docker.software-univention.de/owncloud-redis:10.2.1-1                   "/usr/bin/entrypoint…"   7 weeks ago         Up 2 weeks          6379/tcp                  owncloud_redis_1

If the relevant containers are up- and running you can check the according logs with this command: univention-app logs owncloud