storeBackupUpdateBackup: 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/storeBackupUpdateBackup - from package: storebackup
/usr/share/storebackup/bin/storeBackupUpdateBackup - from package: storebackup

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

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