Ok, this is the whole actual log:
20533 actions.install 21-01-14 03:51:41 [ INFO]: Going to install Collabora Online Development Edition (6.4.0.14)
20533 actions.install 21-01-14 03:51:42 [ DEBUG]: Calling prescript (preinst)
20533 actions.install 21-01-14 03:51:42 [ DEBUG]: Calling /var/cache/univention-appcenter/appcenter.software-univention.de/4.4/collabora_20201029111941.preinst --locale de --binddn uid=loma,cn=osit-user,cn=users,dc=osit,dc=cc --bindpwdfile /tmp/tmpJkK5gs --version 6.4.0.14 --error-file /tmp/tmp47GuhR
20533 actions.install 21-01-14 03:51:42 [ INFO]: Create appcenter/apps/collabora/docker/params
20533 actions.install 21-01-14 03:51:42 [ DEBUG]: /var/cache/univention-appcenter/appcenter.software-univention.de/4.4/collabora_20201029111941.preinst returned with 0
20533 packages 21-01-14 03:51:42 [ DEBUG]: Holding LOCK
20533 actions.install 21-01-14 03:51:42 [ INFO]: Creating data directories for collabora...
20533 actions.install 21-01-14 03:51:42 [ INFO]: Copying /var/cache/univention-appcenter/appcenter.software-univention.de/4.4/collabora_20201029111941.univention-config-registry-variables
20533 actions.install.progress 21-01-14 03:51:42 [ DEBUG]: 5
20533 actions.install 21-01-14 03:51:42 [ INFO]: Registering UCR for collabora
20533 actions.install 21-01-14 03:51:42 [ INFO]: Marking collabora=6.4.0.14 as installed
20533 actions.install 21-01-14 03:51:45 [ INFO]: Creating /etc/init.d/docker-app-collabora
20533 actions.install 21-01-14 03:51:45 [ DEBUG]: Calling /usr/sbin/update-rc.d docker-app-collabora defaults 41 14
20533 actions.install 21-01-14 03:51:45 [ DEBUG]: /usr/sbin/update-rc.d returned with 0
20533 actions.install 21-01-14 03:51:45 [ DEBUG]: Calling /bin/systemctl daemon-reload
20533 actions.install 21-01-14 03:51:45 [ DEBUG]: /bin/systemctl returned with 0
20533 actions.install 21-01-14 03:51:45 [ INFO]: Adding localhost to LDAP object
20533 actions.install 21-01-14 03:51:46 [ DEBUG]: Calling /etc/init.d/apache2 reload
20533 actions.install 21-01-14 03:51:46 [ INFO]: Reloading apache2 configuration (via systemctl): apache2.service.
20533 actions.install 21-01-14 03:51:46 [ DEBUG]: /etc/init.d/apache2 returned with 0
20533 actions.install.progress 21-01-14 03:51:46 [ DEBUG]: 10
20533 actions.install.progress 21-01-14 03:51:46 [ DEBUG]: 15
20533 actions.install.progress 21-01-14 03:51:46 [ DEBUG]: 25
20533 actions.install 21-01-14 03:51:46 [ INFO]: Registering the container host colla-27063561 for collabora
20533 actions.install.progress 21-01-14 03:51:46 [ DEBUG]: 30
20533 actions.install 21-01-14 03:51:46 [ INFO]: Downloading app image docker.software-univention.de/collabora:6.4.0.14
20533 docker 21-01-14 03:51:46 [ INFO]: Running command: docker pull docker.software-univention.de/collabora:6.4.0.14
20533 docker 21-01-14 03:51:47 [ INFO]: 6.4.0.14: Pulling from collabora
20533 docker 21-01-14 03:51:47 [ INFO]: 7595c8c21622: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: d13af8ca898f: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: 70799171ddba: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: b6c12202c5ef: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: 35075541266d: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: cee04d0fabfc: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: b90b0e41d326: Already exists
20533 docker 21-01-14 03:51:47 [ INFO]: Digest: sha256:d0dd7e9558a89a631c52a4ad7c1e354604ce401a0f1c138341c5c5ff12df1902
20533 docker 21-01-14 03:51:47 [ INFO]: Status: Image is up to date for docker.software-univention.de/collabora:6.4.0.14
20533 actions.install 21-01-14 03:51:47 [ INFO]: Initializing app image
20533 utils 21-01-14 03:51:47 [ INFO]: Running command: docker create --hostname colla-27063561 --env-file /var/lib/univention-appcenter/apps/collabora/collabora.env -p 9980:9980/tcp -v /var/lib/univention-appcenter/apps/collabora/data:/var/lib/univention-appcenter/apps/collabora/data -v /etc/apt/apt.conf.d/80proxy:/etc/apt/apt.conf.d/81proxy:ro -v /sys/fs/cgroup:/sys/fs/cgroup:ro -v /var/lib/univention-appcenter/apps/collabora/conf:/var/lib/univention-appcenter/apps/collabora/conf --restart always --cap-add MKNOD -t --tmpfs /run --tmpfs /run/lock --security-opt seccomp:/etc/docker/seccomp-systemd.json -e container=docker docker.software-univention.de/collabora:6.4.0.14 /bin/sh -c bash start-libreoffice.sh
20533 utils 21-01-14 03:51:47 [ INFO]: Error response from daemon: lstat /var/lib/docker/overlay2/7c1b94a8d82ee224214e96f57b4ed292ecaeb2d0d21b52591ff0f6dce4213cae: no such file or directory
20533 utils 21-01-14 03:51:47 [ ERROR]: Command docker create --hostname colla-27063561 --env-file /var/lib/univention-appcenter/apps/collabora/collabora.env -p 9980:9980/tcp -v /var/lib/univention-appcenter/apps/collabora/data:/var/lib/univention-appcenter/apps/collabora/data -v /etc/apt/apt.conf.d/80proxy:/etc/apt/apt.conf.d/81proxy:ro -v /sys/fs/cgroup:/sys/fs/cgroup:ro -v /var/lib/univention-appcenter/apps/collabora/conf:/var/lib/univention-appcenter/apps/collabora/conf --restart always --cap-add MKNOD -t --tmpfs /run --tmpfs /run/lock --security-opt seccomp:/etc/docker/seccomp-systemd.json -e container=docker docker.software-univention.de/collabora:6.4.0.14 /bin/sh -c bash start-libreoffice.sh failed with: Error response from daemon: lstat /var/lib/docker/overlay2/7c1b94a8d82ee224214e96f57b4ed292ecaeb2d0d21b52591ff0f6dce4213cae: no such file or directory (1)
20533 packages 21-01-14 03:51:47 [ DEBUG]: Releasing LOCK
20533 actions.install 21-01-14 03:51:47 [CRITICAL]: Error response from daemon: lstat /var/lib/docker/overlay2/7c1b94a8d82ee224214e96f57b4ed292ecaeb2d0d21b52591ff0f6dce4213cae: no such file or directory
20533 actions.install 21-01-14 03:51:47 [ WARNING]: Aborting...
20533 actions.remove 21-01-14 03:51:47 [ DEBUG]: Calling remove
20533 actions.remove.progress 21-01-14 03:51:47 [ DEBUG]: 0
20533 actions.remove 21-01-14 03:51:47 [ INFO]: Going to remove Collabora Online Development Edition (6.4.0.14)
20533 actions.remove 21-01-14 03:51:47 [ DEBUG]: Calling prescript (prerm)
20533 actions.remove 21-01-14 03:51:47 [ DEBUG]: /var/cache/univention-appcenter/appcenter.software-univention.de/4.4/collabora_20201029111941.prerm does not exist
20533 packages 21-01-14 03:51:47 [ DEBUG]: Holding LOCK
20533 actions.remove.progress 21-01-14 03:51:47 [ DEBUG]: 5
20533 actions.remove.progress 21-01-14 03:51:47 [ DEBUG]: 5
20533 actions.configure 21-01-14 03:51:47 [ DEBUG]: Calling configure
20533 actions.configure.progress 21-01-14 03:51:47 [ DEBUG]: 0
20533 actions.configure 21-01-14 03:51:47 [ INFO]: Configuring collabora=6.4.0.14
20533 actions.configure 21-01-14 03:51:47 [ DEBUG]: /var/cache/univention-appcenter/appcenter.software-univention.de/4.4/collabora_20201029111941.configure_host does not exist
20533 actions.configure.progress 21-01-14 03:51:47 [ DEBUG]: 100
20533 actions.stop 21-01-14 03:51:47 [ DEBUG]: Calling stop
20533 actions.stop.progress 21-01-14 03:51:47 [ DEBUG]: 0
20533 actions.stop 21-01-14 03:51:47 [ DEBUG]: Calling /etc/init.d/docker-app-collabora stop
20533 actions.stop 21-01-14 03:51:48 [ INFO]: Stopping docker-app-collabora (via systemctl): docker-app-collabora.service.
20533 actions.stop 21-01-14 03:51:48 [ DEBUG]: /etc/init.d/docker-app-collabora returned with 0
20533 actions.stop.progress 21-01-14 03:51:48 [ DEBUG]: 100
20533 actions.remove.progress 21-01-14 03:51:48 [ DEBUG]: 45
20533 actions.remove 21-01-14 03:51:48 [ DEBUG]: Calling /usr/sbin/update-rc.d docker-app-collabora remove
20533 actions.remove 21-01-14 03:51:48 [ DEBUG]: /usr/sbin/update-rc.d returned with 0
20533 actions.remove 21-01-14 03:51:48 [ INFO]: Removing localhost from LDAP object
20533 actions.remove 21-01-14 03:51:51 [ DEBUG]: Calling /etc/init.d/apache2 reload
20533 actions.remove 21-01-14 03:51:51 [ INFO]: Reloading apache2 configuration (via systemctl): apache2.service.
20533 actions.remove 21-01-14 03:51:51 [ DEBUG]: /etc/init.d/apache2 returned with 0
20533 actions.remove.progress 21-01-14 03:51:51 [ DEBUG]: 55
20533 actions.remove.progress 21-01-14 03:51:51 [ DEBUG]: 60
20533 actions.remove.progress 21-01-14 03:51:51 [ DEBUG]: 70
20533 actions.remove.progress 21-01-14 03:51:51 [ DEBUG]: 80
20533 actions.remove 21-01-14 03:51:51 [ INFO]: Installing join script /var/cache/univention-appcenter/appcenter.software-univention.de/4.4/collabora_20201029111941.uinst
20533 actions.remove 21-01-14 03:51:51 [ DEBUG]: Calling /usr/sbin/univention-run-join-scripts -dcaccount loma -dcpwd /tmp/tmpFp9LZo
20533 actions.remove 21-01-14 03:51:58 [ WARNING]: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
20533 actions.remove 21-01-14 03:52:05 [ WARNING]: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
20533 actions.remove 21-01-14 03:52:10 [ WARNING]: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,keyboard-interactive).
20533 actions.remove 21-01-14 03:52:10 [ INFO]: Search LDAP binddn:
20533 actions.remove 21-01-14 03:52:10 [ INFO]:
20533 actions.remove 21-01-14 03:52:10 [ INFO]: **************************************************************************
20533 actions.remove 21-01-14 03:52:10 [ INFO]: * Running join scripts failed! *
20533 actions.remove 21-01-14 03:52:10 [ INFO]: **************************************************************************
20533 actions.remove 21-01-14 03:52:10 [ INFO]: * Message: binddn for user loma not found
20533 actions.remove 21-01-14 03:52:10 [ INFO]: **************************************************************************
20533 actions.remove 21-01-14 03:52:10 [ DEBUG]: /usr/sbin/univention-run-join-scripts returned with 1
20533 packages 21-01-14 03:52:10 [ DEBUG]: Releasing LOCK
20533 actions.remove 21-01-14 03:52:10 [ INFO]: Potential script hook folder is unused: /var/lib/univention-appcenter/apps/collabora/local/hooks/post-remove.d
20533 actions.upgrade-search 21-01-14 03:52:10 [ DEBUG]: Calling upgrade-search
20533 actions.upgrade-search.progress 21-01-14 03:52:10 [ DEBUG]: 0
20533 actions.upgrade-search 21-01-14 03:52:10 [ DEBUG]: Checking collabora=6.4.0.14
20533 actions.upgrade-search.progress 21-01-14 03:52:10 [ DEBUG]: 100
20533 actions.remove.progress 21-01-14 03:52:10 [ DEBUG]: 100
20533 utils 21-01-14 03:52:10 [ DEBUG]: send_information: action=install app=collabora value=Error response from daemon: lstat /var/lib/docker/overlay2/7c1b94a8d82ee224214e96f57b4ed292ecaeb2d0d21b52591ff0f6dce4213cae: no such file or directory
status=417
20533 utils 21-01-14 03:52:10 [ DEBUG]: tracking information: {'status': 417, 'uuid': '8081390e-c1c7-485a-910b-0d6df4131e39', 'app': u'collabora', 'value': 'Error response from daemon: lstat /var/lib/docker/overlay2/7c1b94a8d82ee224214e96f57b4ed292ecaeb2d0d21b52591ff0f6dce4213cae: no such file or directory\n', 'version': u'6.4.0.14', 'role': 'domaincontroller_slave', 'action': 'install', 'system-uuid': '2736258f-c9da-4f9d-83e6-387f791b5a80'}