migration assistant hangs

I’m trying to use the migration assistant to changue my domain name from http://jennaavery.com to http://calledtowrite.com . When I enter the old and new domain names and press Changue, the screen loads for a minute, then goes blanc — I still see the dashboard on the left but the main screen is now empty/gray. It is not continuing to load.

I believe I have all the FTP settings correctly configured. I’m never being asqued for my FTP password.

Any tips?

https://wordpress.org/pluguins/wordpress-move/