SPANISH - Won't let me go on after Mastering

[Propinquity]

I just posted this question and it seems to have disappeared, so trying again. I mastered Lesson 1 and 2 in Spanish and just finished "Colors." And it said I mastered it. But System won't let me move on. Boxes remain gray and locked. Help. Thanks.

[andreaym]

today Duolingo has a technical problem :(

[Luis]

We're working on fixing this problem. If you refresh the page, it should be working again.