icepatch2client: 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/icepatch2client - from package: ice35-services

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

Error in other languages:
icepatch2client: bevel nie gevind nie
icepatch2client: comandă negăsită
icepatch2client: comando não encontrado
icepatch2client: commande introuvable
icepatch2client: command not found
icepatch2client: käsku ei ole
icepatch2client: không tìm thấy lệnh
icepatch2client: komanda nerasta
icepatch2client: Kommando nicht gefunden.
icepatch2client: kommandot finns inte
icepatch2client: komut yok
icepatch2client: nie znaleziono polecenia
icepatch2client: níor aimsíodh an t-ordú
icepatch2client: no se encontró la orden
icepatch2client: no s'ha trobat l'ordre
icepatch2client: opdracht niet gevonden
icepatch2client: parancs nem található
icepatch2client: perintah tidak ditemukan
icepatch2client: príkaz nenájdený
icepatch2client: příkaz nenalezen
icepatch2client: команда не найдена
icepatch2client: командата не е открита
icepatch2client: 命令找不到
icepatch2client: コマンドが見つかりません