Problems connecting and inaccessible zoho

Problems connecting and inaccessible zoho

Dashboard zoho api and totally inaccessible.
    - My Account disconnect.
    - In zoho project, I can upload an image.
    - Connection problem.
    - Problem with the css / iframe on my dashboard and the planner and project.



Difference between an old account or a new account (new accounts do not worry)?

And I'm Super Administrator 20 people.

Can you answer me please.