Hi,
Please could you send us a copy of the restoration log?
This can be found in the ‘wp-content/updraft’ directory of the new site.
The contents will be too long to post here directly, but you can use an online service such as Dropbox or Pastebin and post the link here.
In the meantime, you may wish to manually delete the contents of the database, run through the WordPress setup, and then attempt to restore the database backup file again.
Best Wishes,
Dee