This error occurs when logon to MAPI Client fails. This is required for collecting Mailbox Information of users. The credentials provided under 'Organization Settings’ page or while configuring 'Exchange Reporter Plus Service' might be incorrect.
Verify the correctness of username and password entered in the organization settings page. Verify if the user credential provided,
Fill this form, and we'll contact you rightaway.
Our technical support team will get in touch with you at the earliest."