I get the following exception for a move request. How can it be fixed?

[PS] C:\Windows\system32>get-moverequest -movestatus Failed|get-moverequeststatistics|select DisplayName,SyncStage,Failu

re*,Message,PercentComplete,largeitemsencountered,baditemsencountered|ft -autosize

DisplayName                 SyncStage FailureCode FailureType                                    FailureSide FailureTim

                                                                                                             estamp

-----------                 --------- ----------- -----------                                    ----------- ----------

Mac                        FinalIncrementalSync -2146233088 MailboxDataReplicationFailedPermanentException             7/9/201...

Try things mentioned here... 

https://social.technet.microsoft.com/Forums/en-US/01fc587a-f651-4c33-8080-3aedf289599e/migration-error?forum=exchangesvrgeneral

Hi,

For your question, it might be caused by corrupted item in original mailbox.

We can try run move request with BadItemLimit parameter to retry, for example:
New-MoveRequest -Identity "a@abc.com" -TargetDatabase "databaes name" -BadItemLimit "15"
Note: please run Remove-MoveRequest to delete legacy request first.

Here's an similar thread about your question, for your reference:
https://social.technet.microsoft.com/Forums/lync/en-US/842da03a-5963-45b4-ae8d-62107ba0e6ae/2007-to-2013-mailbox-migrations-hang-at-95

Thanks