ctpp2json: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/ctpp2json - from package: ctpp2-utils

You may install the required package with command apt-get install {package}
Error in other languages:
ctpp2json: bevel nie gevind nie
ctpp2json: comandă negăsită
ctpp2json: comando não encontrado
ctpp2json: commande introuvable
ctpp2json: command not found
ctpp2json: käsku ei ole
ctpp2json: không tìm thấy lệnh
ctpp2json: komanda nerasta
ctpp2json: Kommando nicht gefunden.
ctpp2json: kommandot finns inte
ctpp2json: komut yok
ctpp2json: nie znaleziono polecenia
ctpp2json: níor aimsíodh an t-ordú
ctpp2json: no se encontró la orden
ctpp2json: no s'ha trobat l'ordre
ctpp2json: opdracht niet gevonden
ctpp2json: parancs nem található
ctpp2json: perintah tidak ditemukan
ctpp2json: príkaz nenájdený
ctpp2json: příkaz nenalezen
ctpp2json: команда не найдена
ctpp2json: командата не е открита
ctpp2json: 命令找不到
ctpp2json: コマンドが見つかりません