Bad $rs in GetInsertSQL. Connection or SQL invalid. Try using $connection->debug=true;

Error :

file:///F%3A/Sites/Nectil/Files/tmp/17753302048526.xml:1: parser error : Document is empty
file:///F%3A/Sites/Nectil/Files/tmp/17753302048526.xml:1: parser error : Start tag expected, '<' not found
unable to parse F:\Sites\Nectil\Files\tmp\17753302048526.xml