mstmcra: 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 CentOS possible default full paths are:

/usr/bin/mstmcra - from package: mstflint

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/mstmcra - from package: mstflint

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

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