update error

2016/08/02 19:56:07: hydrus client started
2016/08/02 19:56:07: booting controller...
2016/08/02 19:56:07: booting db...
2016/08/02 19:56:09: updating db to v201
2016/08/02 19:56:09: deleting service mapping orphans
2016/08/02 19:56:09: exporting hashes to external db
2016/08/02 19:56:09: A serious error occured while trying to start the program. Its traceback will be shown next. It should have also been written to client.log.
2016/08/02 19:56:09: Traceback (most recent call last):
2016/08/02 19:56:09:   File "include\ClientController.py", line 1053, in THREADBootEverything
2016/08/02 19:56:09:     self.InitModel()
2016/08/02 19:56:09:   File "include\ClientController.py", line 501, in InitModel
2016/08/02 19:56:09:     HydrusController.HydrusController.InitModel( self )
2016/08/02 19:56:09:   File "include\HydrusController.py", line 201, in InitModel
2016/08/02 19:56:09:     self._db = self._InitDB()
2016/08/02 19:56:09:   File "include\ClientController.py", line 60, in _InitDB
2016/08/02 19:56:09:     return ClientDB.DB( self, HC.DB_DIR, 'client', no_wal = self._no_wal )
2016/08/02 19:56:09:   File "include\HydrusDB.py", line 240, in __init__
2016/08/02 19:56:09:     raise e
2016/08/02 19:56:09: Exception: Updating the client db to version 201 caused this error:

Traceback (most recent call last):
  File "include\HydrusDB.py", line 221, in __init__
    self._UpdateDB( version )
  File "include\ClientDB.py", line 7189, in _UpdateDB
    self._c.execute( 'INSERT INTO external_master.hashes SELECT * FROM main.hashes;' )
IntegrityError: UNIQUE constraint failed: hashes.hash_id

2016/08/02 19:56:11: shutting down controller...
2016/08/02 19:56:11: hydrus client shut down