Postgres locale error

Question

I have a Postgres database hosted on Digital River, on Ubuntu, and followed these instructions to install:

But something is wrong with the locale settings and I cannot w

Answer 1

After trying ardochhigh's answer:

$ sudo locale-gen en_US en_US.UTF-8 
$ sudo dpkg-reconfigure locales

the problem persisted

After that I saw this answer that solved the problem for me:

https://www.digitalocean.com/community/questions/language-problem-on-ubuntu-14-04

Aparently LAGUAGE shell variable is not set:

$ sudo bash

$ export LANGUAGE="en_US.UTF-8"
$ echo 'LANGUAGE="en_US.UTF-8"' >> /etc/default/locale
$ echo 'LC_ALL="en_US.UTF-8"' >> /etc/default/locale

$ # next: logout and login