Howto change Language to english - flatpak install on zorin17.2

Howto change Language to english - flatpak install on zorin17.2.
Flatpak install is in maybe an east european language.
Menus are uninteligible language unknown?

Could you provide more information?

Is this an issue with an specific app or with Flatpak itself? Could you show an example of it using the wrong language?
And what are your language settings on your system?