mapsembler: 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/mapsembler - from package: mapsembler2

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

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