Ya probe reinstalandolo y nada, sigue igual, me dijeron que con el archivo error alguien me podia ayudar, espero encontrar alguna solucion

Esto es lo que me aparece:
4/10/2017 12:02:28 p. m.
System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: '.', hexadecimal value 0x00, is an invalid character. Line 9, position 1. (C:\Users\Ftrickman\AppData\Local\GXCentral\GXZone .exe_Url_zdrz4okiq5nxxbqnexycc0fsg1actysi\1.0.0.0\ user.config line 9) ---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 9, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
at System.Xml.XmlTextReaderImpl.ParseText(Int32& startPos, Int32& endPos, Int32& outOrChars)
at System.Xml.XmlTextReaderImpl.ParseText()
at System.Xml.XmlTextReaderImpl.ParseElementContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()
at System.Configuration.XmlUtil.StrictReadToNextEleme nt(ExceptionAction action)
at System.Configuration.BaseConfigurationRecord.ScanS ectionsRecursive(XmlUtil xmlUtil, String parentConfigKey, Boolean inLocation, String locationSubPath, OverrideModeSetting overrideMode, Boolean skipInChildApps)
at System.Configuration.BaseConfigurationRecord.ScanS ectionsRecursive(XmlUtil xmlUtil, String parentConfigKey, Boolean inLocation, String locationSubPath, OverrideModeSetting overrideMode, Boolean skipInChildApps)
at System.Configuration.BaseConfigurationRecord.ScanS ections(XmlUtil xmlUtil)
at System.Configuration.BaseConfigurationRecord.InitC onfigFromFile()
--- End of inner exception stack trace ---
at System.Configuration.ConfigurationSchemaErrors.Thr owIfErrors(Boolean ignoreLocal)
at System.Configuration.BaseConfigurationRecord.Throw IfParseErrors(ConfigurationSchemaErrors schemaErrors)
at System.Configuration.BaseConfigurationRecord.Throw IfInitErrors()
at System.Configuration.ClientConfigurationSystem.OnC onfigRemoved(Object sender, InternalConfigEventArgs e)
--- End of inner exception stack trace ---
at System.Configuration.ClientConfigurationSystem.OnC onfigRemoved(Object sender, InternalConfigEventArgs e)
at System.Configuration.Internal.InternalConfigRoot.O nConfigRemoved(InternalConfigEventArgs e)
at System.Configuration.Internal.InternalConfigRoot.R emoveConfigImpl(String configPath, BaseConfigurationRecord configRecord)
at System.Configuration.BaseConfigurationRecord.GetSe ctionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSe ction(String configKey)
at System.Configuration.ClientConfigurationSystem.Sys tem.Configuration.Internal.IInternalConfigSystem.G etSection(String sectionName)
at System.Configuration.ConfigurationManager.GetSecti on(String sectionName)
at System.Configuration.ClientSettingsStore.ReadSetti ngs(String sectionName, Boolean isUserScoped)
at System.Configuration.LocalFileSettingsProvider.Get PropertyValues(SettingsContext context, SettingsPropertyCollection properties)
at System.Configuration.SettingsBase.GetPropertiesFro mProvider(SettingsProvider provider)
at System.Configuration.SettingsBase.SetPropertyValue ByName(String propertyName, Object propertyValue)
at System.Configuration.SettingsBase.set_Item(String propertyName, Object value)
at System.Configuration.ApplicationSettingsBase.set_I tem(String propertyName, Object value)
at GXCentral.Utils.GetXMLFromUrl(String src, String cache)
System.Configuration.ConfigurationErrorsException: '.', hexadecimal value 0x00, is an invalid character. Line 9, position 1. (C:\Users\Ftrickman\AppData\Local\GXCentral\GXZone .exe_Url_zdrz4okiq5nxxbqnexycc0fsg1actysi\1.0.0.0\ user.config line 9) ---> System.Xml.XmlException: '.', hexadecimal value 0x00, is an invalid character. Line 9, position 1.
at System.Xml.XmlTextReaderImpl.Throw(Exception e)
at System.Xml.XmlTextReaderImpl.Throw(String res, String[] args)
at System.Xml.XmlTextReaderImpl.ParseText(Int32& startPos, Int32& endPos, Int32& outOrChars)
at System.Xml.XmlTextReaderImpl.ParseText()
at System.Xml.XmlTextReaderImpl.ParseElementContent()
at System.Xml.XmlTextReaderImpl.Read()
at System.Xml.XmlTextReader.Read()
at System.Configuration.XmlUtil.StrictReadToNextEleme nt(ExceptionAction action)
at System.Configuration.BaseConfigurationRecord.ScanS ectionsRecursive(XmlUtil xmlUtil, String parentConfigKey, Boolean inLocation, String locationSubPath, OverrideModeSetting overrideMode, Boolean skipInChildApps)
at System.Configuration.BaseConfigurationRecord.ScanS ectionsRecursive(XmlUtil xmlUtil, String parentConfigKey, Boolean inLocation, String locationSubPath, OverrideModeSetting overrideMode, Boolean skipInChildApps)
at System.Configuration.BaseConfigurationRecord.ScanS ections(XmlUtil xmlUtil)
at System.Configuration.BaseConfigurationRecord.InitC onfigFromFile()
--- End of inner exception stack trace ---
at System.Configuration.ConfigurationSchemaErrors.Thr owIfErrors(Boolean ignoreLocal)
at System.Configuration.BaseConfigurationRecord.Throw IfParseErrors(ConfigurationSchemaErrors schemaErrors)
at System.Configuration.BaseConfigurationRecord.Throw IfInitErrors()
at System.Configuration.ClientConfigurationSystem.OnC onfigRemoved(Object sender, InternalConfigEventArgs e)
Info :http://update.gxzone.com/app/setting.php