Database table issues after update

I have updated from version 2.5 to 3.0.0 beta8 and in the process we have lost all of our old information for rooms, etc.
After the update, the plugin was disabled by WordPress.

When I do in to administer rooms and availability I am seeing the following error:
[Table ‘klooffix.wp_awebooking_rooms’ doesn’t exist]
SELECT * FROM wp_awebooking_rooms AS room INNER JOIN wp_posts AS post ON (post.ID = room.room_type AND post.post_status = ‘publish’ AND post.post_type = ‘room_type’) ORDER BY post.ID DESC, room.id ASC LIMIT 15 OFFSET 0

WordPress database error: [Table ‘klooffix.wp_awebooking_rooms’ doesn’t exist]
SELECT COUNT(*) FROM wp_awebooking_rooms AS room INNER JOIN wp_posts AS post ON (post.ID = room.room_type AND post.post_status = ‘publish’ AND post.post_type = ‘room_type’)

I have attampted this twice and both times I get the same result.
All our data is gone and there are problems.

The only thing I can imagine is that there is a required update that should be run for the plugin before updating to 3.0.0.

Please advise.

Thanks, Oliver

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