I updated my Joomla version from 3.10.x to 4.3 yesterday and had a number of issues. Basically, the site broke but the admin always worked. I have fixed everything except a problem loading the site template, which is Startup Biz. I was running version 1.1 but updated it to latest (3.0.)
Even after updating the template I am still getting an error on the front end (site still not displaying):
error - Uncaught Throwable of type Error thrown with message "Cannot access protected property Joomla\CMS\Menu\MenuItem::$params". Stack trace: #0 [ROOT]/libraries/src/Document/HtmlDocument.php(741): require() #1 [ROOT]/libraries/src/Document/HtmlDocument.php(796): Joomla\CMS\Document\HtmlDocument->_loadTemplate('/home/########...', 'index.php') #2 [ROOT]/libraries/src/Document/HtmlDocument.php(613): Joomla\CMS\Document\HtmlDocument->_fetchTemplate(Array) #3 [ROOT]/libraries/src/Application/CMSApplication.php(1012): Joomla\CMS\Document\HtmlDocument->parse(Array) #4 [ROOT]/libraries/src/Application/SiteApplication.php(724): Joomla\CMS\Application\CMSApplication->render() #5 [ROOT]/libraries/src/Application/CMSApplication.php(298): Joomla\CMS\Application\SiteApplication->render() #6 [ROOT]/includes/app.php(61): Joomla\CMS\Application\CMSApplication->execute() #7 [ROOT]/index.php(32): require_once('/home/#######...') #8 {main}
The website is https://volsystems.com/