chardet3: 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/chardet3 - from package: python3-chardet

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

Error in other languages:
chardet3: bevel nie gevind nie
chardet3: comandă negăsită
chardet3: comando não encontrado
chardet3: commande introuvable
chardet3: command not found
chardet3: käsku ei ole
chardet3: không tìm thấy lệnh
chardet3: komanda nerasta
chardet3: Kommando nicht gefunden.
chardet3: kommandot finns inte
chardet3: komut yok
chardet3: nie znaleziono polecenia
chardet3: níor aimsíodh an t-ordú
chardet3: no se encontró la orden
chardet3: no s'ha trobat l'ordre
chardet3: opdracht niet gevonden
chardet3: parancs nem található
chardet3: perintah tidak ditemukan
chardet3: príkaz nenájdený
chardet3: příkaz nenalezen
chardet3: команда не найдена
chardet3: командата не е открита
chardet3: 命令找不到
chardet3: コマンドが見つかりません