Viglink Error: HTTP request status fails: 401

I recently started using Content Egg and Affiliate Egg Pro. Now I get API and other details of VigLink. I’ve configured API in Content Egg, Now when I try to fetch products from Viglink, appear an error. Please guide me.

Error: HTTP request status fails: 401 – Unauthorized. Server replay: {“error”:{“errors”:{“reason”:”invalidCredentials”,”message”:”Authorization secret is missing or invalid. This can be found at https:\/\/publishers.viglink.com\/account and can be sent as a parameter or Authorization header”,”locationType”:”parameter”,”location”:”secret”}},”code”:401,”message”:”Authorization secret is missing or invalid. This can be found at https:\/\/publishers.viglink.com\/account and can be sent as a parameter or Authorization header”}