Please describe the problem:
during running SOL game, sometime Randomly, it shows error message (as
Screenshot), some inform try to collect as following.

----------
Starting program: /usr/bin/sol 
[Thread debugging using libthread_db enabled]
[New Thread -1208326432 (LWP 5137)]
GTK Accessibility Module initialized
Bonobo accessibility support initialized

(sol:5137): Gtk-WARNING **: Refusing to add non-unique action 'Option0' to
action group 'MenuActions'

Some deprecated features have been used.  Set the environment
variable GUILE_WARN_DEPRECATED to "detailed" and rerun the
program to get more information.  Set it to "no" to suppress
this message.

Steps to reproduce:
1. run sol
2. start any game
3. try to put card at random place
4. Select GAME to change game
  

Actual results:
it shows Error message like "
An error occurred while loading or saving configuration information for sol.
Some of your configuration settings may not work properly.
"Text contains invalid UTF-8"


Expected results:
should not have error message

Does this happen every time?
Random during move of Card to invaild place in a game

Other information:
Screenshot