icmstart: 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/icmstart - from package: icmake

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

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