Web service error = The remote server returned an error: (404) Not Found

Bonjour,

J'ai une application web qui tourne sur du .net et je veux acceder a une section (un plugin) j'ai l'erreur ci dessous:

[2018-01-09 08:57:50.246 ERROR] Web service error.
System.Net.WebException: The remote server returned an error: (404) Not Found.
at System.Net.WebClient.DownloadDataInternal(Uri address, WebRequest& request)
at System.Net.WebClient.DownloadString(Uri address)
at XXXXXX.REST.Client.BusinessLogic.XXXXXXClient.Get(GetRequest request)
at XXXXXX.REST.Client.BusinessLogic.XXXXXXClient.RetrieveModels(RetrieveModelsRequest request)
at ApplicationPlugins.XXXXXXRunnerConfiguration.Plugin.BusinessLogic.XXXXXXRunnerConfiguration.RetrieveXXXXXXModels(RetrieveXXXXXXModelsRequest request)
at SyncInvokeRetrieveXXXXXXModels(Object , Object[] , Object[] )
at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)
at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)
at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)

Pourriez vous m'aider a analyser cette erreur?

ps:J'utilise un clavier qwerty pour cela que je n'utilise pas d'accent.

Merci
Hil