yauap: 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/yauap - from package: yauap

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

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