So, 2B2T updated to 1.19. And the admin made several changes that pissed off the playerbase. This includes stronger anti-cheat and anti-xray systems, as well as the limiting of the number of certain items (such as totems) or the total deletion of some others (like end crystals), from the chests and inventories of players. They will have to grind back these items from the start. Hause has also announced that a significant amount of inactive chunks would be deleted.
EDIT: Plenty of duped items will be deleted as well.