I do not understand the criticism of the user with the YOOtheme template. I also use a YOOtheme template and have no problems.
It also works with an external component SEF and the SEF functionality of Joomla.
Thank you for the excellent work! The donation is on its way. :-)
Thank you very much for your review!
Have success with EFSEO.
Sorry about that. I tracked it down to an array key error that causes the plugin to halt. It is resolved in release 1.2 currently available for upgrade.