Error in client request handler: Connection refused| wsd/LOOLWSD.cpp:1038

When I try to open a document I get the following error

Docker Logs:

String of run Docker:
docker run --security-opt seccomp:unconfined --privileged -t -d -p 127.0.0.1:9980:9980 -e ‘domain=nextcloud\.acckey\.org’ -e ‘username=soh’ -e ‘password=master’ --restart always --cap-add MKNOD collabora/code

Docker Info:

Summary

root@ubu16:/var/lib/docker# docker info
Containers: 2
Running: 1
Paused: 0
Stopped: 1
Images: 2
Server Version: 1.13.0
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 13
Dirperm1 Supported: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
Volume: local
Network: bridge host macvlan null overlay
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 03e5862ec0d8d3b3f750e19fca3ee367e13c090e
runc version: 2f7393a47307a16f8cee44a37b262e8b81021e3e
init version: 949e6fa
Security Options:
apparmor
seccomp
Profile: default
Kernel Version: 4.4.0-59-generic
Operating System: Ubuntu 16.04.1 LTS
OSType: linux
Architecture: x86_64
CPUs: 2
Total Memory: 1.184 GiB
Name: ubu16
ID: B7FQ:B6UA:BIPO:EXPA:OW7O:GBBM:2V2E:EEVP:YILK:2PRS:VFGY:UZEE
Docker Root Dir: /var/lib/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Experimental: false
Insecure Registries:
127.0.0.0/8
Live Restore Enabled: false

How to solve this problem?((

any ideas,I tired to install again and again
((((

Besides of your problem you should anonymize your domain and HIDE/scramble usernames or passwords
I just could look in your admininterface of your collabora instance.

additional to that please provide:

Nextcloud-Version
Collaboraplugin-Version
error message
does https://collabora-domain/hosting/discovery show an xml File
docker ps
docker logs
result of docker info
anonymized docker start command
the anonymized content of their collabora-webinstance (f.e. /etc/apache/sites-enabled/collabora.domain.tld.conf)
which SSL-Certs are being used (self signed or from a recognized authority)
result of "uname -a"
the date of the download of the collabora-image
If it already worked or not and if possible with which image-date.