As we constantly are improving and securing your data. You will once in a while experience that you have to clear your browser for cookies and history data and update your login.
How do I log Out:
Go to you top right corner and PRESS ->
Go back to your reports that you have received in you mail and open the link again.
If you still are having issues logging in please send a mail with a screenshot of the issue to: Support@dataandmore.com