flexloader: 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/flexloader - from package: flexloader

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

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