bp_translate_seq: 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
/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/bp_translate_seq - from package: bioperl

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