My game keeps crashing randomly

I recently just got Royalty and Legacy pack and my game has been crashing when I’m in build mode (this is the third time in 10 minutes it has happened). I have to stop after a few changes and save it so I don’t have to continually restart when I open the game again - but it’s starting to bother me now to the point I can’t even play.

I don’t plan on being in build mode the entire time but I just started playing again after a week or two; the 2.30 update was automatically installed when I opened the game. 

Can someone help me with this? I play on my PS5.

Thank you.