icepatch2server: 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/icepatch2server - from package: ice35-services

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

Error in other languages:
icepatch2server: bevel nie gevind nie
icepatch2server: comandă negăsită
icepatch2server: comando não encontrado
icepatch2server: commande introuvable
icepatch2server: command not found
icepatch2server: käsku ei ole
icepatch2server: không tìm thấy lệnh
icepatch2server: komanda nerasta
icepatch2server: Kommando nicht gefunden.
icepatch2server: kommandot finns inte
icepatch2server: komut yok
icepatch2server: nie znaleziono polecenia
icepatch2server: níor aimsíodh an t-ordú
icepatch2server: no se encontró la orden
icepatch2server: no s'ha trobat l'ordre
icepatch2server: opdracht niet gevonden
icepatch2server: parancs nem található
icepatch2server: perintah tidak ditemukan
icepatch2server: príkaz nenájdený
icepatch2server: příkaz nenalezen
icepatch2server: команда не найдена
icepatch2server: командата не е открита
icepatch2server: 命令找不到
icepatch2server: コマンドが見つかりません