tstimeout: 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/tstimeout - from package: opencaster

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