gozerbot: command not found

Have You tried accessing the binary with the full path?

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 - from package: gozerbot

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