How to see and edit users in zoho docs

How to see and edit users in zoho docs

In my zohodocs at Admin Panel it is impossible to see the users that I subscribed to docs
the taps Users, Groups, Settings, Security and Admin Governance are empty.

Only the taps Organization profile and Reports are working. both are helpless for me. 

In General the zoho docs is also so difficult it takes hours to solve a problem