I cannot find any updates in Impulse I recieve a mesage saying Problem retrieving update data, the error log shows:

Context: Updating Networks XML Public
Message: Generic problem with XML file.
Build #: 955
Exception: There is an error in XML document (1, 2).
Inner Exception: <script xmlns=''> was not expected.
Stack Trace:
   at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events)
   at System.Xml.Serialization.XmlSerializer.Deserialize(Stream stream)
   at Stardock.Central.Common.ObjectSerializer.Deserialize(Type type, Stream stream)
   at a7.e(UpdateParams A_0)
Stack Trace (inner):
   at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReaderNetworksList.Read5_Networks()