Hi bfw
Try opening a new profile using the default settings and then adjust the settings as you want. In other words a new profile but do not clone an existing one.
In that new profile, if you are confident with your trigger, turn off trigger logging in the Betting settings. Log trigger expressions should always be off unless you are testing a formula etc.
The above will not determine the cause of your crashes, but will reduce the heavy load on the system by switching off logging for your triggers, and hopefully add some stability.
If you need to check trigger logs etc. then turn on logging with a reduced number of markets.
...just a suggestion