3.0 is now being pushed to all platforms as we speak!
Reminder: Like every update, if someone in your Kingdom gets to update before you, you will be locked out of your Kingdom.
This is not a bug, please do not create bug report threads or report this. It will be resolved as soon as you update the game.
At this stage, we are also investigating some issues with PC achievements/goals. Working to resolve this ASAP.
These ones specifically:
Once this is resolved, you will be able to go into Tavern > Goals and just click on the goal (maybe click around a few times on it) and it will trigger.