"Your rice is cold."
Translation:Uw rijst is koud.
You have to finish your lessons that have a colour (the last row that has a colour). If you finish those, you'll unlock a new row of skills.
You can contact Duolingo in different ways. If you discovered a bug, you can report it here. Otherwise, a discussion in the troubleshoot forum or the forum of the language that you are learning will do.