Fatal error: Uncaught TypeError: Argument 1 passed to DOMDocument::importNode() must be an instance of DOMNode, null given in C:\inetpub\wwwroot\api_1.0.1\api\lib\libxml.php:66 Stack trace: #0 C:\inetpub\wwwroot\api_1.0.1\api\lib\libxml.php(66): DOMDocument->importNode(NULL, true) #1 C:\inetpub\wwwroot\api_1.0.1\api\module\api\api.php(212): Xml->insert_node('<?xml version="...') #2 C:\inetpub\wwwroot\api_1.0.1\api\lib\main.php(103): Api->__construct(Object(Config), 'person') #3 C:\inetpub\wwwroot\api_1.0.1\api\data.php(18): DataApi->__construct(Object(Config)) #4 {main} thrown in C:\inetpub\wwwroot\api_1.0.1\api\lib\libxml.php on line 66