I have installed Akeeba Backup for Wordpress core version to test it before subscription (still a subscriber of the Joomla version).
Backend Backup works well, but I cannot get the cron based backup running (wp-content/plugins/akeebabackupwp-core/app/cli/backup.php).
The following error occured
Array
(
[0] => Akeeba Solo CLI 1.7.1 (2016-03-20)
[1] => Copyright (C) 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd
[2] => -------------------------------------------------------------------------------
[3] => Akeeba Solo is Free Software, distributed under the terms of the GNU General
[4] => Public License version 3 or, at your option, any later version.
[5] => This program comes with ABSOLUTELY NO WARRANTY as per sections 15 & 16 of the
[6] => license. See http://www.gnu.org/licenses/gpl-3.0.html for details.
[7] => -------------------------------------------------------------------------------
[8] => You are using PHP 5.6.19-nmm1 (cli)
[9] =>
[10] => Starting a new backup with the following parameters:
[11] => Profile ID 1
[12] => Description "Command-line backup"
[13] =>
[14] => Current memory usage: 2.81 Mb
[15] =>
[16] => Unsetting time limit restrictions.
[17] =>
[18] => Site paths determined by this script:
[19] => APATH_BASE : /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app
[20] => PHP Fatal error: Uncaught exception 'RuntimeException' with message 'Could not connect to MySQL' in /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Driver/Mysqli.php:288
[21] => Stack trace:
[22] => #0 /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Driver/Base.php(1035): Akeeba\Engine\Driver\Mysqli->query()
[23] => #1 /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Driver/Base.php(728): Akeeba\Engine\Driver\Base->execute()
[24] => #2 /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Platform/Base.php(583): Akeeba\Engine\Driver\Base->loadAssocList()
[25] => #3 /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Platform.php(272): Akeeba\Engine\Platform\Base->get_running_backups(NULL)
[26] => #4 /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Factory.php(393): Akeeba\Engine\Platform->__call('get_running_bac...', Array)
[27] => #5 /www/htdocs/w00975af/wordpress/wp- in /www/htdocs/w00975af/wordpress/wp-content/plugins/akeebabackupwp-core/app/Solo/engine/Driver/Mysqli.php on line 288
)
Debug log is attached