ghostess_universal_gui: 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/ghostess_universal_gui - from package: ghostess

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

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