qhavedate: 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/qhavedate - from package: weboob-qt

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

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