cramfsswap: 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/cramfsswap - from package: cramfsswap

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

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