Hi
I have updated my site from 3.10 to 4 and I have this message
Cannot access protected property Joomla\CMS\Menu\MenuItem::$params
I have followed the steps I found here: https://www.joomshaper.com/forum/question/36772
and updated again, same result.
I moved to J5 to try something different, same result.
I switched to debug mode and I have this table, I dont understand :)
Call Stack

Function Location

1 () JROOT/templates/themis/features/title.php:28
2 HelixUltimateFeatureTitle->renderFeature() JROOT/plugins/system/helixultimate/src/Core/HelixUltimate.php:557
3 HelixUltimate\Framework\Core\HelixUltimate->include_features() JROOT/plugins/system/helixultimate/src/Core/HelixUltimate.php:575
4 HelixUltimate\Framework\Core\HelixUltimate->render_layout() JROOT/templates/themis/index.php:144
5 require() JROOT/libraries/src/Document/HtmlDocument.php:731
6 Joomla\CMS\Document\HtmlDocument->_loadTemplate() JROOT/libraries/src/Document/HtmlDocument.php:785
7 Joomla\CMS\Document\HtmlDocument->_fetchTemplate() JROOT/libraries/src/Document/HtmlDocument.php:622
8 Joomla\CMS\Document\HtmlDocument->parse() JROOT/libraries/src/Application/CMSApplication.php:1057
9 Joomla\CMS\Application\CMSApplication->render() JROOT/libraries/src/Application/SiteApplication.php:732
10 Joomla\CMS\Application\SiteApplication->render() JROOT/libraries/src/Application/CMSApplication.php:311
11 Joomla\CMS\Application\CMSApplication->execute() JROOT/includes/app.php:58
12 require_once() JROOT/index.php:32

Could you please support me?
Thanks