cgiapp-starter: 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/cgiapp-starter - from package: libmodule-starter-plugin-cgiapp-perl

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

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