Your locale is broken. Somehow you have set the LANG variable to "pt_BR:pt:en", which is an invalid value. Given the other locale related variables, it should reasonably be "pt_BR.UTF-8". Probably the invalid setting is in /etc/default/locale or ~/.pam_environment.
Your locale is broken. Somehow you have set the LANG variable to "pt_BR:pt:en", which is an invalid value. Given the other locale related variables, it should reasonably be "pt_BR.UTF-8". Probably the invalid setting is in /etc/default/locale or ~/.pam_environment.
Do you possibly have an idea how that happened?