kumolog: 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/kumolog - from package: kumofs

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

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