Office server information locked

Office server information locked
An error occurred "Could not establish connection to the Collabora Online server.", now I can't edit nor change anything on Nextcloud Office setting page.
I was using the Built In code server, but it wasn't compatible with Pangolin, so I've switched to a dedicated Collablora server.
After disabling the Built Code server, I got this error : "Could not establish connection to the Collabora Online server."

To Reproduce
Install Nextcloud Office.
Install Collabora.
Try to make it with Pangolin and fail.
Disable Collabora Built In Server.
Install a dedicated Collabora Server.
Go to Office settings page under Administrative setting.
Got error message

Expected behavior
Having a green check logo

Screenshots
If applicable, add screenshots to help explain your problem.

Client details:

• windows 11
• firefox

Server details

Operating system:
Debian Linux 12

Web server:
Apache

Database:
MariaDB

PHP version:

Nextcloud version:
32

Version of the richdocuments app

Version of Collabora Online
24.04.12.3.1

Start at the Office settings page and reproduce the connection error after disabling the built-in server and configuring a dedicated Collabora server. Check the reported environment details and determine why the page remains locked; done means the settings page accepts the dedicated server and shows the green check logo.