After upgrading to Joomla 4.3, there are significant problems with displaying a contact (see error message). Checking shows that the problem seems to be related to the override to /com_contact/contact/default_form.php.

Request testing and clarification!

Use SP PageBuilder in the current version 4.0.10.

Sincerely Arnold Bemberg

ErrorMessage: 0 Joola\CMS\User\UserFactory::loadUserByUsername(): Argument #1 ($username) must be type string, null given, called in /homepages/d886546666/htdocs/GenealogieJ4/libraries/src/User/User.php on line 280