Password to unlock keyring

I just downloaded the new wallet and now every time I open the wallet it asks me to enter password to unlock key ring. What is it?

What wallet is this (mobile, nanowallet)?
Which version?
Could you attach screenshot with this problem?

I a using wallet version 2.0.14 Linux version

It’s linux specific I guess.
There should be solution how to block this popup on Ubuntu if you don’t want it.
For example:
https://www.google.pl/search?client=ms-android-xiaomi&ei=rF1KWseGOcnCwQL2h5-wDw&sjs=3&q=keyring+popup+ubuntu&oq=&gs_l=mobile-gws-serp.1.1.35i39k1l3.0.0.0.7311.2.1.1.0.0.0.0.0..0.0…0…1…64.mobile-gws-serp…1.1.41.3…514.UcRIrsDBGRw

Ok, that makes sense. Thank you.