dispcalGUI-apply-profiles: 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/dispcalGUI-apply-profiles - from package: dispcalgui

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

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