Really bummed to hear that, sorry! I encountered one crash during testing that I was reasonably sure I had fixed, which seemed to happen when enemies choose new paths after destroying one of the home buildings. If you think maybe it's related, I'd suggest trying to concentrate build up defenses further down the road.
Could you say roughly what was going on when it crashed? And what platform and/or browser you're playing on? If you're willing to try again, and you're playing on the web, there may be errors in your browser's javascript console that could be helpful for debugging. Or if you can clone the repo and play with a debug build that would be amazing.
Sorry, I'm not actually aware of any crashes so I can't suggest any workarounds.