lpsuntime: 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/lpsuntime - from package: mcrl2

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

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