adplugdb: 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/adplugdb - from package: adplug-utils

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