cramfsck: 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/sbin/cramfsck - from package: cramfsprogs

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

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