lsb2rcconf: 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:

/lib/rc/bin/lsb2rcconf - from package: openrc

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

Error in other languages:
lsb2rcconf: bevel nie gevind nie
lsb2rcconf: comandă negăsită
lsb2rcconf: comando não encontrado
lsb2rcconf: commande introuvable
lsb2rcconf: command not found
lsb2rcconf: käsku ei ole
lsb2rcconf: không tìm thấy lệnh
lsb2rcconf: komanda nerasta
lsb2rcconf: Kommando nicht gefunden.
lsb2rcconf: kommandot finns inte
lsb2rcconf: komut yok
lsb2rcconf: nie znaleziono polecenia
lsb2rcconf: níor aimsíodh an t-ordú
lsb2rcconf: no se encontró la orden
lsb2rcconf: no s'ha trobat l'ordre
lsb2rcconf: opdracht niet gevonden
lsb2rcconf: parancs nem található
lsb2rcconf: perintah tidak ditemukan
lsb2rcconf: príkaz nenájdený
lsb2rcconf: příkaz nenalezen
lsb2rcconf: команда не найдена
lsb2rcconf: командата не е открита
lsb2rcconf: 命令找不到
lsb2rcconf: コマンドが見つかりません