While login through horde, you may sometimes get the following error.

ERROR

“A fatal error has occurred:
DB Error: connect failed
[line 411 of /usr/local/cpanel/base/horde/kronolith/lib/Driver/sql.php]
Details have been logged for the administrator.”

One of the reason for this error is due to missing horde DB from Mysql.

RESOLUTION

$> mysql < /usr/local/cpanel/base/horde/scripts/sql/create.mysql.sql

Then run

$> /scripts/resethorde
$> /scripts/fullhordereset

Now do this :–>

cp /usr/local/cpanel/3rdparty/bin/imapd /usr/sbin

touch /var/cpanel/usecpphp

It should fix the error. 🙂