27 minutes ago, Pablus said:Hi, what are you seen right now when you try to enter your backoffice? a blank screen? in that case enable debug mode to see which error appears and post it here.
Connection error
Firefox cannot connect to the xxx.cz server.
He is trying hard to connect with the online server xxx.cz
I deleted all the caches that came to my mind, including browsers
this pops up in a browser
https://xxx.cz/ where xxx is the domain name
I'm still thinking of htaccess