Problem loading HB

I've updated Honorbuddy today to the newest version, but this morning, HB loaded before the "Login" screen and now I get this.

[12:12:12:509] System.TypeInitializationException: The type initializer for 'Styx.Helpers.UISettings' threw an exception. ---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 1, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
at System.Xml.XmlTextReaderImpl.Throw(Int32 pos, String res, String[] args)
at System.Xml.XmlTextReaderImpl.ThrowInvalidChar(Int32 pos, Char invChar)
at System.Xml.XmlTextReaderImpl.ParseRootLevelWhitespace()
at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlReader.MoveToContent()
at System.Xml.Linq.XElement.Load(XmlReader reader, LoadOptions options)
at System.Xml.Linq.XElement.Load(String uri, LoadOptions options)
at System.Xml.Linq.XElement.Load(String uri)
at Styx.Helpers.Settings..ctor(String settingsPath)
at Styx.Helpers.UISettings..ctor()
at Styx.Helpers.UISettings..cctor()
--- End of inner exception stack trace ---
at Honorbuddy.MainWindow..ctor()


this is in the debug

It usually comes up with a "Login" box with my key already displayed and I press enter, it logs me on, but today it just goes onto a grey empty HB box.

 

Sorted, thanks tony