Toby Hi Toby, thank you for your support and time 🙂
I hope your day is going well.
Activate debug mode or try to enable display errors on php are not helping to diagnose the isse as no other message than the red alert is showed.
In the Flarum log I have:
[2018-12-01 07:03:34] production.ERROR: PDOException: SQLSTATE[42S22]: Column not found: 1054 Unknown column 'flarum_posts_ft.most_relevant_post_id' in 'field list' in .../vendor/doctrine/dbal/lib/Doctrine/DBAL/Driver/PDOConnection.php:80
seems the error log file has 1560 line https://justpaste.it/5gkc0