tscrypt: 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/tscrypt - from package: opencaster

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

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