
It change the 'route' of service. I mean, when I call https://mymail.server.com (just an example). It shows the video web conference page.

Then i remove (uninstall completely) the web video conf app. And the accident is

HTTP ERROR 502
Problem accessing ZCS upstream server. Cannot connect to the ZCS upstream server. Connection is refused.
Possible reasons:
upstream server is unreachable
upstream server is currently being upgraded
upstream server is down
Please contact your ZCS administrator to fix the problem.
Powered by Nginx-Zimbra://
I thought that something is missing in /etc/nginx/site-enable/ or something similar
So, I want to know
Is there any correlation between zimbra and nginx site-configuration ?
Thanks.