Hello,
after installation on a brand new Joomla 6 page and activating the PiTech Template I get an Error 500 JFactory not found.
First in your error.php lin 17 you write JFactory instead of only Factory.
Next error is in features/title.php line 51 same, you have to use Factory instead of JFactory.
In same file line 87 also Juri is not used in this file...
You should use in this file
use Joomla\CMS\Factory;
use Joomla\CMS\JURI;
Havent looked into other files, but I think the complete template is not fully ready for Joomla 6...
Greets