lpsconfcheck: 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/lpsconfcheck - from package: mcrl2

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

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