kover: 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/kover - from package: kover

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

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