sudo apt-get update &
sudo apt-get upgrade

Error found when loading /etc/profile:
/etc/profile.d/01-locale-fix.sh:/usr/bin/locale-check:no such file or directory
locale: Cannot set LC_ALL to default locale no such file or directory
locale: Cannot set LC_ALL to default locale no such file or directory
As a result the session will not be configured correctly.
You should fix the problem as soon as feasible.