Build a Thing Workshop

So this is my first time experiencing an event in the TeamTSTO version of the game. The Halloween event has started, and my quest says I need to build the Build A Thing Workshop. But there is no workshop available in the build menu. What do I do? lol

Edit: They updated something. The Treehouse of Horror alien screen is no longer there when you boot up the app and the quest I was talking about is gone from the quest line. They might be fixing it at the moment.

Edit:: It’s fixed now!