sudo apt install dconf-cli
Reinstalling terminal
dconf reset -f /org/gnome/terminal
sudo apt-get remove gnome-terminal
sudo apt-get install gnome-terminal
Reconfiguring locale
sudo locale-gen --purge
sudo dpkg-reconfigure locales
reboot
sudo apt install dconf-cli
dconf reset -f /org/gnome/terminal
sudo apt-get remove gnome-terminal
sudo apt-get install gnome-terminal
sudo locale-gen --purge
sudo dpkg-reconfigure locales
reboot