This happens all the times to me. Keeping a note here..

for Centos

https://www.noreplied.com/how-to-fixed-cannot-change-locale-utf-8-error-in-centos-7/

cat 'LC_CTYPE="en_US.UTF-8"' >> /etc/environment

For Ubuntu

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 en_US 
dpkg-reconfigure locales ->> choose 149 and 3