Issues in OneNote - Integrated with Dynamics 2016

Hi,

This is regarding OneNote Integration with CRM. 

I have tested OneNote with few more users and started getting below errors.

I have attached 3 screenshots attached having three different errors.

Please look into this and suggest a solution as we would like to start working on OneNote as soon as possible. 

a. "An error has occurred. Try this action again. ........... Error: 0X80040216 ". 

b. "The remote server returned 401 unauthorised error....... Error: 0X800608b4"

c. "We couldn't display the Notebook. Please try agin or restart the app, or contact your administrator. Error: 0X80060719".

Please look into this and revert with the solution.

Regards

Deepak Kumar