Hi,
How many markets are you monitoring at any one time?
You dont need to monitor the markets until you want to trigger a bet. So if you want to bet at 10 minutes before the off, in the Settings, Monitoring section, set the condition Monitor markets to 11 mins before the off.
If you are loading and opening too many markets, then the program will respond by stalling/freezing which sounds like what is happening.
If you need to monitor lots of markets, make sure in the Settings, you refresh the idle markets(markets before the off) at a long second time frame, eg 5 seconds or more. And if you dont need the inplay markets, you can stop monitoring at 5 seconds after the off time.