Field 'items_*anything' doesn't exist as of about 3 hours ago

Everyone is experiencing this issue suddenly due to changes on Monday’s end. Please try to search before posting, and avoid creating new threads for the same issue as it fragments the discussion.

Also, for quicker assistance with bugs and technical problems, you may want to contact support directly. The more users contact support, the more likely it will get prioritised.

See the main thread below:-