lava-coordinator: 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/lava-coordinator - from package: lava-coordinator

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

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