On UTC October 21th, 2016, at 1:00 an update was released.
If the game doesn’t have the newest data it won’t run properly.
If you were playing at the time of release, please go back to the title screen to update the game.

Update Notes

The First Event Dungeon “Halloween Party Poopers” is Open!

Announcement page:
https://www.happydungeons.net/news/update/574/

Now by Drawing a Wild Life Pack You Get a Bonus “Finest Ore”!

Announcement page:
https://www.happydungeons.net/news/info/584/

The Spear from the Event Dungeon “Megian Gartona Clauss”, in the Item Shop for a Limited Time!

Announcement page:
https://www.happydungeons.net/news/info/589/