Stalled due to Source mailbox capacity exceeded new-moverequest

Solution 1
Restart Exchange information store and replication service on source and destination server and check if it works.

Solution 2
Get-MoveRequest | Get-MoveRequestStatistics -IncludeReport | fl
Then
Get-MoveRequest -identity <******> | Suspend-MoveRequest
Get-MoveRequest -identity <******> | Resume-MoveRequest

Solution 3