timblserver: 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/timblserver - from package: timblserver

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

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