As the title says, where are the "Bingo" missions? Have they been cancelled?

For those who don't know, starting from every monday, there used to be another event in this game called "bingo", and it contained 9 missions/quests for you to complete at a time, the more bingo missions you complete the better the rewards you'll get.

But recently, they have suddenly stopped, and have never been seen again; I'm making this post hoping for an answer from a staff member for my question.