Hi all,
When I select "Administer Page"→ “Look&Feel"→"Panels”, the website always displays 504 Gateway Time-out nginx/1.14.0 (Ubuntu). And “Panels” is the only page showing the error.
I have upgraded the xwiki version, but it doesn’t work.
I don’t have same configuration as yours, I don’t use nginx server but apache one. You’ll have to find configuration file on your system (or docker image), and find which parameter is involved