korganizer-mobile: command not found

Have You tried accessing the binary with the full path?

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/korganizer-mobile - from package: korganizer-mobile

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