x2goserver-run-extensions: 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/x2goserver-run-extensions - from package: x2goserver

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

Error in other languages:
x2goserver-run-extensions: bevel nie gevind nie
x2goserver-run-extensions: comandă negăsită
x2goserver-run-extensions: comando não encontrado
x2goserver-run-extensions: commande introuvable
x2goserver-run-extensions: command not found
x2goserver-run-extensions: käsku ei ole
x2goserver-run-extensions: không tìm thấy lệnh
x2goserver-run-extensions: komanda nerasta
x2goserver-run-extensions: Kommando nicht gefunden.
x2goserver-run-extensions: kommandot finns inte
x2goserver-run-extensions: komut yok
x2goserver-run-extensions: nie znaleziono polecenia
x2goserver-run-extensions: níor aimsíodh an t-ordú
x2goserver-run-extensions: no se encontró la orden
x2goserver-run-extensions: no s'ha trobat l'ordre
x2goserver-run-extensions: opdracht niet gevonden
x2goserver-run-extensions: parancs nem található
x2goserver-run-extensions: perintah tidak ditemukan
x2goserver-run-extensions: príkaz nenájdený
x2goserver-run-extensions: příkaz nenalezen
x2goserver-run-extensions: команда не найдена
x2goserver-run-extensions: командата не е открита
x2goserver-run-extensions: 命令找不到
x2goserver-run-extensions: コマンドが見つかりません