checkpoint_summary: 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/lib/fastdnaml/bin/checkpoint_summary - from package: fastdnaml

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

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