No access to OlyOffice functions

[RayMaynard]

I am new to the Docker world (and Linux) so apologies if I am being stupid. Please be patient.

I have installed the docker-onlyoffice-owncloud image on a RHEL 7.3 docker host.
There had been an onlyoffice developer container previously, which was not started.
No issues during install.

I changed none of the configuration files.
When I went to webpage, I created a user/password for admin, took all defaults SQLLite etc.

I ran the set_configuration.sh . It reports:

• docker cp ./onlyoffice app-server:/var/www/html/apps/
  lstat /home/rmaynard/apps/ownonly/onlyoffice: no such file or directory

When I browse to site, I see a working owncloud site, but no access or reference to OnlyOffice.
What have I done wrong? A docker ps shows:

CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8e29248b18e3 nginx "nginx -g 'daemon ofâ¦" 41 minutes ago Up 40 minutes 0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp nginx-server
25fa20efb8bc onlyoffice/documentserver:latest "/bin/sh -c 'bash -Câ¦" 41 minutes ago Up 40 minutes 80/tcp, 443/tcp onlyoffice-document-server
d433518ac4fd owncloud:fpm "docker-entrypoint.sâ¦" 41 minutes ago Up 41 minutes 80/tcp, 9000/tcp app-server

[RayMaynard]

I can run docker exec app-server ls -l /var/www/html/apps/onlyoffice
and see an empty folder. Any idea where I should look for stuff to copy into it? like docker cp ./onlyoffice would have done?

docker exec onlyoffice-document-server ls -l /var/www/onlyoffice shows as below
drwxr-xr-x 2 onlyoffice onlyoffice 6 Jul 13 12:08 Data
drwxr-xr-x 1 onlyoffice onlyoffice 83 Jul 13 12:08 documentserver
drwxr-xr-x 3 onlyoffice onlyoffice 20 Jul 13 12:08 documentserver-example