Background Uploader for Windows Phone is complaining about Maximum number of secrets

While trying to upload Log files to server using the BackgroundUploader class, we are seeing the below issue.

The maximum number of secrets that may be stored in a single system has been exceeded. (Exception from HRESULT: 0x80070565)

Environment Details:

• Visual Studio 2013
• C#
• Windows Embedded Handheld Phone 8.1 application

Initially few files would be uploaded, but once we see this exception the files are no longer uploaded to the server.

We are providing the credentials using PasswordCredential class.

Any help to resolve this issue would be appreciated.