Sorry you're having issues with the new app. Can you please let me know what version of android you're using, as well as which device?
Can you also please try going into your application settings, finding the Chess.com app, (force stop if open), clearing out the app data, uninstalling, and then reinstalling to see if that helps at all with the crashes?
As far as online chess, it is refered to as Daily Chess in the new verison of the app.
Crashes on any game I open. Also where is the tab for 'Online' play it doesn't exist. 'Live' play appears so why not 'Online'.