bubblefishymon: 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/bubblefishymon - from package: bubblefishymon

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

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