Catchable fatal error: Argument 1 passed to DOMXPath::__construct() must be an instance of DOMDocument, instance of stdClass given, called in /homepages/21/d50695631/htdocs/orendi/ressourcen/code/php/functions.php on line 301 and defined in /homepages/21/d50695631/htdocs/orendi/index.php5 on line 275