cherryd3: 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/cherryd3 - from package: python3-cherrypy3

You may install the required package with command apt-get install {package}
Error in other languages:
cherryd3: bevel nie gevind nie
cherryd3: comandă negăsită
cherryd3: comando não encontrado
cherryd3: commande introuvable
cherryd3: command not found
cherryd3: käsku ei ole
cherryd3: không tìm thấy lệnh
cherryd3: komanda nerasta
cherryd3: Kommando nicht gefunden.
cherryd3: kommandot finns inte
cherryd3: komut yok
cherryd3: nie znaleziono polecenia
cherryd3: níor aimsíodh an t-ordú
cherryd3: no se encontró la orden
cherryd3: no s'ha trobat l'ordre
cherryd3: opdracht niet gevonden
cherryd3: parancs nem található
cherryd3: perintah tidak ditemukan
cherryd3: príkaz nenájdený
cherryd3: příkaz nenalezen
cherryd3: команда не найдена
cherryd3: командата не е открита
cherryd3: 命令找不到
cherryd3: コマンドが見つかりません