gozerbot-stop: 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/gozerbot-stop - from package: gozerbot

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

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