ulatency-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/ulatency-gui - from package: ulatency

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

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