Apple iPhone crash Bug December 2, 2017 - Disable Notifications!
Channel: John Kennedy
Date: 02/12/2017

New bug on the iphone that starts at 12:15am on December 2, 2017 for most users with certain push notification apps 

As per Apple - https://support.apple.com/en-us/HT208332

1. Tap Settings - Notifications.
2. Tap an app, then turn off Allow Notifications. Repeat this step for each app.
3. Update your device to iOS 11.2.
4. After updating, tap Settings - Notifications and turn Allow Notifications on again for each app. 

If you're unable to update or still have issues after the update, contact Apple Support.