Hi @jemm77
Backup Migration (plugin which you used to do the restoration) is not compatible with backups made with old WP Clone plugin.
In any case, it does not look like the URL you provided for the migration points to valid ZIP file. Our plugin failed because it didn’t return any downloadable file.
Make sure that you can download the backup file using same URL, simply by pasting it into your navigator in browser.
In any case, once you find and download proper backup file, use old WP Clone plugin in order to restore it.
Backup Migration can only restore backups created by the same plugin.
Let me know if you need any further details on this topic ??
Thank you!