msvmocas: 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/msvmocas - from package: libocas-tools

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