Fatal error: Uncaught Error: Call to a member function appendChild() on null in /home/elcorreodeespana/repositories/amp-library-master/vendor/querypath/querypath/src/QueryPath/DOMQuery.php:1461 Stack trace: #0 /home/elcorreodeespana/repositories/amp-library-master/src/Pass/TwitterTransformPass.php(54): QueryPath\DOMQuery->after(Object(DOMDocumentFragment)) #1 /home/elcorreodeespana/repositories/amp-library-master/src/AMP.php(450): Lullabot\AMP\Pass\TwitterTransformPass->pass() #2 /home/elcorreodeespana/public_html/article_amp.php(89): Lullabot\AMP\AMP->convertToAmpHtml() #3 {main} thrown in /home/elcorreodeespana/repositories/amp-library-master/vendor/querypath/querypath/src/QueryPath/DOMQuery.php on line 1461