Error after installing und updating collabora

NethServer Version: 7.9
Nextcloud: 25.0.5

COOLWSD Version: (git hash: bcbca64)
LOKit Version:
built on a great technology base
Collabora Office (git hash: 416b470)
Angeboten von: NethServer 7.9.2009 d299a3d0

Regarding the Docu: Collabora Online β€” NethServer 7 Final
yum install nethserver-collabora

Update via: yum update --enablerepo=collaboraoffice

Collabora starts well within Nextcloud and I can edit documents.

But after closing the Collabora GUI the Nextcloud GUI is empty until manual reload.

Within in the NC-Log:

[no app in context] Warnung: Host was not connected to because it violates local access rules

GET /index.php/core/preview?fileId=1577&x=250&y=250
from by 05B8FF07-38F7-4A34-8C19-39C0856ACDAB at 2023-04-13T13:47:09+00:00

The IP is the local WAN-IP of my client.
The IP is the IP of the dummy NIC of my Nethserver (br0).

I tried to set: coolconfig set
The errors within the log file and the behavior persists.

What can I do?

Sincerely, Marko

Doesn’t anyone have any ideas?

You may try to add

'allow_local_remote_servers' => true,

to /usr/share/nextcloud/config/config.php

See also Nextcloud - Remove Collabora and Install OnlyOffice - #4 by mrmarkuz