elm_prefs_cc: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/elm_prefs_cc - from package: libelementary-bin

You may install the required package with command apt-get install {package}

Error in other languages:
elm_prefs_cc: bevel nie gevind nie
elm_prefs_cc: comandă negăsită
elm_prefs_cc: comando não encontrado
elm_prefs_cc: commande introuvable
elm_prefs_cc: command not found
elm_prefs_cc: käsku ei ole
elm_prefs_cc: không tìm thấy lệnh
elm_prefs_cc: komanda nerasta
elm_prefs_cc: Kommando nicht gefunden.
elm_prefs_cc: kommandot finns inte
elm_prefs_cc: komut yok
elm_prefs_cc: nie znaleziono polecenia
elm_prefs_cc: níor aimsíodh an t-ordú
elm_prefs_cc: no se encontró la orden
elm_prefs_cc: no s'ha trobat l'ordre
elm_prefs_cc: opdracht niet gevonden
elm_prefs_cc: parancs nem található
elm_prefs_cc: perintah tidak ditemukan
elm_prefs_cc: príkaz nenájdený
elm_prefs_cc: příkaz nenalezen
elm_prefs_cc: команда не найдена
elm_prefs_cc: командата не е открита
elm_prefs_cc: 命令找不到
elm_prefs_cc: コマンドが見つかりません