Hi @gerbz29 ,
Have you skipped some versions of this plugin before the current update? There is a major update in which that we changed the structure of the product ID for Bought Together items.
Our developers have developed a Migrate tool for users to manually update the database for the Bought Together products on site. We have recently removed this tool assuming that users have acknowledged of all the changes and migrated them properly.
If you haven’t been able to use this tool, you can kindly submit a new ticket at our Support Forum https://wpc.ticksy.com/ to ask for further assistance on this issue. This is because our developers might need to request for your admin credentials to migrate the data and restore the Bought Together settings on your site. This can’t be done here as this is a public forum and we are not allowed to ask for private information of users.
Best regards.