br_bioflat: 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/br_bioflat - from package: ruby-bio

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

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