I have the exactly same problem on my Lumia 640 with Windows 10 (update: I'm on 10586.218, it is the latest Windows 10 production version). The application crashes immediately it is started. The only way to start it again is to restart the phone. This happens all the time since new UWP version of Enpass App was introduced. Just to mention that I have integration with Onedrive enabled, it might help to pinpoint the problem. Once I restart the phone it works, some time later it stops working and p