So, the problem was with your postfix and because of it you wasn't able to recover...
Did you install required packages, ./check_system_requirements.php.
get rid of your old Zend located in webacula/library/Zend , download static zend...
do you have postfix installed ?
Recover your passwd by email. mysql -u root -p use bacula; update webacula_users...
I'm using it on Centos7 with bacula 7 and it's work like a charm, it's a bit trikyer...
for some reason root passwd does not work out of the box, so we need to recover it...
I'm using it on Centos7 with bacula 7 and it's work like a charm, it's a bit trikyer...