AdditiveSeries: 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/AdditiveSeries - from package: topp

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

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