ch..root: 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:

/var/lib/wims/public_html/bin/ch..root - from package: wims

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