Hi everyone, I was trying to conect to my ownCloud server but I get this error :
Proxy Error
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request
Reason: Error reading from remote server
Apache/2.4.38 (Univention) Server at whykorp .fr Port 80
Thanks in advance for your help 
Hey,
from what i know ownCloud is only a web application and written in PHP. From what i know ownCloud is not responsible for such responses like “Proxy Error” or similar which i think is originating from the used web server.
If the UCS appliance is in use then i think it could be possible that you need to ask for support at https://help.univention.com/