bibhva: 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/bibhva - from package: hevea

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

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