omniEvents: 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/lib/debug/usr/sbin/omniEvents - from package: libomnievents-dbg
/usr/sbin/omniEvents - from package: omnievents

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

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