@ScammerRevolts @zooy0rk Hahah, I had the same issue. So glad the issue wasn’t more serious, never would have guessed this was the cause as I had some other postgres related errors during the rebuild. 
Was already prepping a new instance to restore a backup to. Totally fine now once this component was updated, it was ~4 revisions behind I believe.
Safe mode was really helpful for narrowing down the issue: How to use Discourse Safe Mode