Weird chararcters in test.html

My browse function wasn't working so I checked test.html

I got the following error:
Invalid at the top level of the document. Error processing resource 'http://www.iziwebdesign.com/clients/stal/beheer/FCKeditor/editor/filemanager/browser/default/connectors/php/connector.php?Command=GetFolders&Type=Image&CurrentFolder=/'. Line 1, Position 1

<?xml version="1.0" encoding="utf-8"?><Connector command="GetFolders" resourceType="Image"><CurrentFolder path="/" url="/UserFiles/Image/" /><Folders><Folder name=",." /><Folder name="km" /><Folder name="hj" /><Folder name="jk" /><Folder name="aaa" /><Folder name="gh" /><Folder name="Test Folder" /></Folders></Connector>

^

Notice the characters at the beginning of the xml line. And also at the ending. HELP