My saves keep crashing

I've had the game crash 2 times before, usually I just start over but this time that is not working!!! 

 I think I have the bug that is going around a lot since for rent came out.  At first the game would load infinitely when I tried to visit a certain family - then it started happening in more lots... so I stopped playing and tried to upload as many buildings as possible so I wouldn't lose the progress of filling out the worlds. This was my only save, I'm a generational player and builder mostly. 

I read somewhere that too many families and generations was an issue when these specific bugs start to appear. So I started a new save and added some of my builds (no rentals), and 2 families. Very soon the same issues appeared... 

So I started a new save - hobbies and business just came out, I opened a new game and only picked one lot were I built a hostel and played with that family only. The moment I tried to build a second lot in the world, the game crashed again. I was in build mode and I couldn't do anything, no placing objects, no deleting,... this also started happening in the first file that got corrupted. I did download a room with plants from the gallery- maybe that caused the issue?

At this point I'm not sure how I can play without crashing my game? Should I try again and just not touch anything from the gallery? 

I play on a Mac and I have no mods.