Fatal error: Uncaught TypeError: PHPFUI\Container::add(): Argument #1 ($object) must be of type PHPFUI\Base|string, null given, called in /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/InstaDoc/Section/Functions.php on line 105 and defined in /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/Container.php:41 Stack trace: #0 /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/InstaDoc/Section/Functions.php(105): PHPFUI\Container->add(NULL) #1 /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/InstaDoc/Section/Functions.php(56): PHPFUI\InstaDoc\Section\Functions->documentFunction('Symfony\\Compone...') #2 /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/InstaDoc/Section/Doc.php(38): PHPFUI\InstaDoc\Section\Functions->generate(Object(PHPFUI\InstaDoc\Page), '../Symfony/Comp...') #3 /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/InstaDoc/Controller.php(179): PHPFUI\InstaDoc\Section\Doc->generate(Object(PHPFUI\InstaDoc\Page), '../Symfony/Comp...') #4 /homepages/18/d179646520/htdocs/PHPFUIWebsite/www/index.php(120): PHPFUI\InstaDoc\Controller->display() #5 {main} thrown in /homepages/18/d179646520/htdocs/PHPFUIWebsite/PHPFUI/Container.php on line 41