wtpt: 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 CentOS possible default full paths are:

/usr/bin/wtpt - from package: lcms

You may install the required package with command yum install {package}

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