bbdb-unlazy-lock: 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/bbdb-unlazy-lock - from package: bbdb

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

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