==== Required information ====
- iRedMail version: 0.8.7
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Linux/BSD distribution name and version: Ubuntu 14.04 LTS
- Related log if you're reporting an issue:
====

So yeah, I just installed iRedMail, i fill out the settings, but I cannot connect with the roundcube, iredadmin.
I'm getting "Internal Server Error" for iredadmin and "Database Error, connection failed!" for roundcube, I look on the config file, it's correct so why I'm getting an error. How will i proceed?

Also when I go to /usr/share/apache2 there is two iredadmin folders and roundcube folders.

apache2-maintscript-helper  build/                      error/                      iredadmin/                  roundcubemail/
ask-for-passphrase          default-site/               icons/                      iRedAdmin-0.3.3/            roundcubemail-1.0.1/

Also, there is no db.inc.php, do I need to create this?