Thanks for the report, Snapdragon.
Yes, Lord Rat has problems with a few cards, one of them being Wayfarer. The Lord can't decide if to gain a Silver or not.
If something like this happens again, where the bot takes suddenly more than a few seconds to make a decision, then reload the page (CTRL-R). One reason might be that the connection between you and the game is slow or broken, which means the reload takes a long time or hangs as well. Another is that the game is overcrouded and thus laggy, where the same will happen.
In this case, it might be worth to wait, because the problem is not the Lord Rat, but the response time from the game (in other words, the problem would be similar if your opponent was a human player).
But if the game reloads in a usual time interval and it still says "Waiting for Lord Rattington", then it is most likely a situation like here, where the bot AI is stuck. Then I'd personally do another round of CTRL-R and waiting for the reloads to be absolutely sure, then resign the game. The bot is actually stuck, not just taking a long time and you can't change that. So resign and play another game.