fts: 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/sbin/fts - from package: fts

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

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