Did you mean Freinds in map or in list ? Have you update your PRS game than connected to Facebook Let me know if you need any further help or have any questions.
Hello @Deregnaucourt A Warm Welcome to our friendly King Community
I am sorry to hear about the issue in your game!!
Can you please tell me what browser you are using to play the game? Do you have a mobile device? Did you try to play on that and see if you can find your friends?
Please tap on "Type your Comment" box located below to write back.
Talk to you soon! Have a great rest of the day/evening!
-Reinstall the game (click here if you can't find it)
Remember to NOT edit any settings in the pop ups when reinstalling and if the game asks for any permissions to access your Facebook you will need to accept these, otherwise the game cannot pick up your friends from your friends list into the game.