sfex_init: 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

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/sfex_init - from package: resource-agents

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