what device are you playing on (pc/android/iphone)
also when you say crash do you mean it freezes or does the browser reload the page?
Okay, since it isn't mobile it's easier to find out what's wrong.
Please do the following steps:
1. Load your save
2. Open the browser console (Ctrl+Shift+J)
3. Replay the scene until it crashes/freezes
4. Copy the console output
5. On the same tab as the current frozen game, go to the top bar and type "chrome://gpu"
6. On the top press "Download Report to File"
Then go to tightly.games/report and paste the console output into the "Issue" text box, and attach the about-gpu txt into the "Attachments".