schemaValidate Generated Errors!

Esquema: https://esquiar.costasur.com/bundles/costasuradmin/docs/ha/HA-XML-OLB-1.3.xsd

Fichero: https://esquiar.costasur.com/app_dev.php/ha/booking/content/index/request.xml

• Warning 1549: failed to load external entity "https://esquiar.costasur.com/app_dev.php/ha/booking/content/index/request.xml" on line 0
• Error 1872: The document has no document element. on line -1