fixing: unsupported locale setting

export LANGUAGE=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_ALL=en_US.UTF-8
locale-gen en_US.UTF-8
sudo dpkg-reconfigure locales

https://medium.com/@mohammedhammoud/fix-locale-error-unsupported-locale-setting-f9849eec41f1