lapcat: 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/lapcat - from package: pagekite

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