Hi, I receive this error "Class "JRequest" not found" after upgrade from Joomla 3.10.11 to 4.2.6 This error is displayed when some menu items are selected from the frontend.
Hi
It due to a 3rd party extension on your site called: Content - Ignite Gallery plugin. It looks like it's not compatible with Joomla 4 yet.
I temporarily disabled it and your site is working now.
Thank you