My iPad app crashes all the time too..
I´ve installed the iOS 9 beta, maybe it´s because of that..
I found a fix. Turn off Bluetooth.
it fixed it for me..
An update is coming, but for now you can work around the crash by disabling Bluetooth.
Hope that helps,
We've just posted an update to Illustrator Draw that solves the crashing issue running iOS 9 beta. You should now be able to run the app and keep Bluetooth enabled.