I had same problem and only started last night. All was OK Sunday night! I also posted here....
http://forum.icetv.com.au/iceforum/index.php/topic,4403.0.htmlThe body of the error is the same but the first line is different to yours....
There was an error loading the XMLTV Data!
org.xml.sax.SAXParseException; systemId:
http://iceguide.icetv.com.au/iceguide/iceguide.dtd; lineNumber: 1; columnNumber: 3; The markup declarations contained or pointed to by the document type declaration must be well-formed.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(Unknown Source)
at javax.xml.parsers.DocumentBuilder.parse(Unknown Source)
at GuideStore.loadXMLdata(GuideStore.java:617)
at GuideStore.loadXMLTV(GuideStore.java:337)
at EpgDataRes.reloadXMLTVdata(EpgDataRes.java:1835)
at EpgDataRes.getResponse(EpgDataRes.java:49)
at HTTPRequest.sendResponseData(HTTPRequest.java:94)
at RequestObject.run(RequestObject.java:145)
at java.lang.Thread.run(Unknown Source)