Vimeo API miss Access token secret

Hello

First of all thank you for your free plugin.

I tried to create a new vimeo app to be able to generate thumbnail of private videos but i can’t find anywhere Access token secret. On one thread you talk about a beta version of your plugin using API Version: 3.2

My project must be ready really soon and if you have the time to upload again the beta version, that would be really nice of you

Thank you