[Plugin: The Events Calendar] Can't Migrate to 2.0

I get this error when I click on migrate data button

The website encountered an error while retrieving https://www.austinfreeevents.com/wp-admin/edit.php?post_type=tribe_events&page=tribe-events-calendar. It may be down for maintenance or configured incorrectly.
Here are some suggestions:
Reload this webpage later.
HTTP Error 500 (Internal Server Error): An unexpected condition was encountered while the server was attempting to fulfill the request.

Plugin says it active but is not – I know all the data is still somewhere because when i click on links to the events it takes me back to my website to event entry.

Also – I did not back up

Is there a way around this? Can I get back to 1.6.5 ?

https://www.ads-software.com/extend/plugins/the-events-calendar/