VER EL MI PONY

Me gustaría que me alludaran,soy inesperto y no doy con ello. CRACIAS. Al bajarme el mi pony,me sale el cuadrito que pone ....

La aplicación detectó un error:
“Error en la inicialización del sistema de configuración”

Detalles del error:
System.Configuration.ConfigurationErrorsException
System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
System.Configuration.ClientConfigurationSystem.PrepareClientConfigSystem(String sectionName)
System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
System.Configuration.ConfigurationManager.GetSection(String sectionName)
System.Configuration.PrivilegedConfigurationManager.GetSection(String sectionName)
System.Net.Configuration.SettingsSectionInternal.get_Section()
System.Net.Sockets.Socket.InitializeSockets()
System.Net.IPAddress.InternalParse(String ipString, Boolean tryParse)
System.Net.NetworkInformation.IpAddrString.ToIPAddressCollection()
System.Net.NetworkInformation.SystemIPGlobalProperties.GetFixedInfo()
System.Net.NetworkInformation.SystemIPGlobalProperties.get_FixedInfo()
System.Net.NetworkInformation.SystemIPGlobalProperties.get_DomainName()
System.Net.CookieContainer..ctor()
Megaget.WebClientEx..ctor()
#=qLnFYsI$snkszJ1Q4Asq8LF0QwgDHP_KtvBKq7uGfNlc=.#=qR9pObWMTZJTOnAqGlUx8DA==()
#=qLnFYsI$snkszJ1Q4Asq8LF0QwgDHP_KtvBKq7uGfNlc=..ctor(String[] #=qUN1dJl$Ir0MG3vfDN3J9rw==)
#=qkSoTEzGKWX7pyIZ19OBg8g0XkrQwo$O_FnRzDldRAkA=.#=qHIv7lDdgC9oBFY6Nf_3ycQ==(String[] #=qXEArxduqOZU$sTyFYAO68A==)
System.Configuration.ConfigurationErrorsException: Sección de configuración no reconocida system.serviceModel. (C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config line 146)
System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()
System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
OS version: Microsoft Windows NT 5.1.2600 Service Pack 3