New Post: Ciritical error when adding product to checkout or going to the checkout page

Have tried adding a fresh checkout module to a new page and when going into NB_Store_Checkout Settings I see this message;

Error: NB_Store_Checkout is currently unavailable. DotNetNuke.Services.Exceptions.ModuleLoadException: Root element is missing. ---> System.Xml.XmlException: Root element is missing. at System.Xml.XmlTextReaderImpl.Throw(Exception e) at System.Xml.XmlTextReaderImpl.ParseDocumentContent() at System.Xml.XmlTextReaderImpl.Read() at System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) at System.Xml.XmlDocument.Load(XmlReader reader) at System.Xml.XmlDataDocument.Load(XmlReader reader) at System.Xml.XmlDocument.LoadXml(String xml) at NEvoWeb.Modules.NB_Store.CheckOutSettings.populateGatewayList() --- End of inner exception stack trace ---