webcit: 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/sbin/webcit - from package: citadel-webcit
/usr/lib/debug/usr/sbin/webcit - from package: webcit-dbg

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