Can't open scorelog file 'freeciv-score.log' for creation!

[Frostblade]

I've enabled loging player stats in server options -> internal.

Since then I'm getting this error from the title in the client chat interface while playing.
I assume it has to be permission issue but not sure where this file attempts to be created to check permissions.

My OS is Debian, freeciv is 3.2.1 and client is Qt.
I've compiled and installed freeciv using custom backport method (pulled sources from unstable Debian branch "forky").

How to resolve this?

And btw. is there score graph at the end of game which utilizes these scores? because if there isn't then I'll just disable the option.
I don't think I'll be using raw data to render it myself.