plait: 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/plait - from package: plait

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

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