ErrorMailboxMoveInProgress: This error indicates that the mailbox cannot be logged into using Exchange Web Services (EWS) because a mailbox move operation is in progress. The mailbox move operation is not being performed by MigrationWiz. It is being performed using Microsoft Exchange's move mailbox commands. For example, the mailbox move may be performed by a hosted service provider after adding a new Exchange mailbox store server to their infrastructure to allow for additional storage.
If you have administrative access to the Exchange Server, stop the move in progress.
If you do not administrative access to the Exchange Server, contact the Exchange administrator or hosted service provider.