Warning: Undefined property: Joomla\CMS\Table\Extension::$manifest_cache in C:\xampp\htdocs\NamPhong\libraries\src\Updater\Updater.php on line 359

Warning: Trying to access array offset on value of type null in C:\xampp\htdocs\NamPhong\libraries\src\Updater\Updater.php on line 361

Fatal error: Type of JException::$file must be string (as in class Exception) in C:\xampp\htdocs\NamPhong\libraries\legacy\exception\exception.php on line 18