Cannot continue learning

I am doing the course at this link: Level 3 - #3 - Advanced/Intermediate Italian - Memrise
When I click on “learn”, it says “loading learning session” and without starting the lesson, directs me to the level with the following ss:


All the words are seen as “ready to review”, like first two in the ss. But bar is not full and the level seems as unfinished.
I did the next level once and after finishing it, situation on level 3 did not change and again when i click learn button, the same thing happens: it says “loading learning session” and without starting the lesson, directs me to the level with the above ss.

I cannot try it on any mobile app, I don’t know if the problem exist there but in web, it’s like that since about 10 days.

Same for me with this course’s level 21 http://www.memrise.com/course/348761/jlpt-n4-vocabulary-4/

This is probably caused by the system thinking that there’s another word that you need to learn in that level, even though you’ve completed the level, but I’m not sure how to fix it, sorry.