Did you setup the computer to use italian language? Would be
sudo dpkg-reconfigure locales
and select en_US.UTF-8 UTF-8, then select en_US.UTF-8 as the default for system.
After confirmation with ok, do a complete reboot (easiest way to get all software using the new locales)
The language is selected based on the browser’s Accept-Language header, which is most likely the same as the language of the device you’re using, unless you manually reconfigure that.
Cool. Haven’t know that before that it is done in that way for a subset of the menus/text in OH.
I also had a mixture of English and local language. The later changed when I set my browser’s language priority to english as well.
Depending on your browser, there might be a setting for language priority. This will affect other websites as well however, if they use the header to select language.