It might also be worth mentioning that I updated WordPress the day before this issue appeared.
It started happening yesterday in the morning.
The site domain was changed a few days before yesterday.
The site is hosted on a sub-folder of another site. The domain used to be literal: http://www.meta.com/site; now it is http://www.site.com.
I tried reverting that change, but the problem persisted. This page seems to be haunted or something!
