Crash after leaving Briar in the background before the account is actually created

**Steps to reproduce **

Install Briar on a device (I used HTC One M9 API24 and Nokia 3.1 API30)
Open Briar app
Create a nickname, tap Next
Crete the password and confirm it, tap Next
Then allow Briar to run in the background, and then when given information 'To run in the background, Briar needs to be locked to the recent apps list' tap on 'Protect Briar'
Then you're given this dialogue box
at that point leave briar and go to check if briar is in the list of recently used apps
do not change anything, just look, then come back to Briar
Briar crashes

Here are log files of the three crashes