vldb_check: 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/sbin/vldb_check - from package: openafs-dbserver

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

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