exrpptm: 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/exrpptm - from package: exrtools

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

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