chardetect3: 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/chardetect3 - from package: python3-chardet

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

Error in other languages:
chardetect3: bevel nie gevind nie
chardetect3: comandă negăsită
chardetect3: comando não encontrado
chardetect3: commande introuvable
chardetect3: command not found
chardetect3: käsku ei ole
chardetect3: không tìm thấy lệnh
chardetect3: komanda nerasta
chardetect3: Kommando nicht gefunden.
chardetect3: kommandot finns inte
chardetect3: komut yok
chardetect3: nie znaleziono polecenia
chardetect3: níor aimsíodh an t-ordú
chardetect3: no se encontró la orden
chardetect3: no s'ha trobat l'ordre
chardetect3: opdracht niet gevonden
chardetect3: parancs nem található
chardetect3: perintah tidak ditemukan
chardetect3: príkaz nenájdený
chardetect3: příkaz nenalezen
chardetect3: команда не найдена
chardetect3: командата не е открита
chardetect3: 命令找不到
chardetect3: コマンドが見つかりません