pesvideo2ts: 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/pesvideo2ts - from package: opencaster

You may install the required package with command apt-get install {package}
Error in other languages:
pesvideo2ts: bevel nie gevind nie
pesvideo2ts: comandă negăsită
pesvideo2ts: comando não encontrado
pesvideo2ts: commande introuvable
pesvideo2ts: command not found
pesvideo2ts: käsku ei ole
pesvideo2ts: không tìm thấy lệnh
pesvideo2ts: komanda nerasta
pesvideo2ts: Kommando nicht gefunden.
pesvideo2ts: kommandot finns inte
pesvideo2ts: komut yok
pesvideo2ts: nie znaleziono polecenia
pesvideo2ts: níor aimsíodh an t-ordú
pesvideo2ts: no se encontró la orden
pesvideo2ts: no s'ha trobat l'ordre
pesvideo2ts: opdracht niet gevonden
pesvideo2ts: parancs nem található
pesvideo2ts: perintah tidak ditemukan
pesvideo2ts: príkaz nenájdený
pesvideo2ts: příkaz nenalezen
pesvideo2ts: команда не найдена
pesvideo2ts: командата не е открита
pesvideo2ts: 命令找不到
pesvideo2ts: コマンドが見つかりません