I have also taken notice of the times the crashes occur and must say its very clear a SERVER ISSUE. Game is working well as expected all day then as time draws close to the influx, down we go. The current server/s can't handle the influx when people wake up and log in from different regions ie Oceania, Europe, USA etc ..... The traffic is just too much to handle at these cross over times.
Simple fix which Lisa has addressed re above post so all we can do is wait and hope this resolves the issue.