Sims 4 Crash and Automatic Shutdown

The game randomly crashes and shuts down while in build mode. I have no Mods or CC on my game, and this has only happened after the last update. I am currently building on one of the Lots in Sulani, and it has happened 4 times. There is no warning, no error code, and a lag. It just shuts down, also I am using a MacBook Air.