I updated joomla gofast template from 3.9 to 4.2 but am receiving this error; Cannot access protected property Joomla\CMS\Menu\MenuItem::$params (site here: test.bil.co.ke)

I upgraded helix ultimate framework to 2. I unpublished YT shortcode plugin so the site can run.

Question: If i procure YT shortcode for joomla 4, will the site run properly? Do you have an upgrade patch for the gofest template to make it compatible with joomla 4. Kindly Assist

Hello
Do you mean GoFast theme?

We published it with Joomla4
themeforest.net/item/gofast-multipurpose-transport-logistics-joomla-template/22296605
If you want more advice, you can contact my email hieutt@ytcvn.com
Best regards