GNOME asking for unknown password

I’m using NixOS now for several days and getting again and again the same announcement:


this appears sometimes random while im doing nothing, while opening geary or trying to unlock my Login keyring in gnome “keyrings”.

i dont know what it wants, i’ve tried my user password and the root password, but it dont work.

Did you perhaps change your user password?

The login keyring is encrypted with your user password so if you change it, you will need to enter the old user password to be able unlock the keyring.

no, i didnt changed any passwords. im using a nearly fresh installed system, i’ve only installed some packages and configured apache. i did nothing else.