kumohash: 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/kumohash - from package: kumofs

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