It says I have no friends connected

Good evening @Susiewong72 and welcome to the community.

Could you tell me if you are connecting via Facebook or the kingdom please?

Thanks for letting me know. Can you open your Facebook and go to settings, then apps and find farm heroes. Check that it's active and that you have given your friends list permission to be shared.

https://community.king.com/en/farm-heroes-saga/discussion/265799/superstar-information-post-my-friends-are-not-showing-in-the-game-facebook-users

When you say disappeared from your game, can you still request lives from the heart icon?

I know the studio are trialling an update where the friends list has gone from after we have played a level.

Ok... have you tried logging out, restarting your phone and then logging back in?

It sounds like it's saying you are logged in, but you're actually not.