Hello!
Whenever I try to click “Learn new words” on the Japanese 1 course from Memrise, I get the error “Whoops. 400 (BAD_REQUEST) error calling web API /learning_sessions/learn/?course_id=2022732”. And this keeps happening all the time, not letting me continue with new lessons. I’m using a Windows 10 computer on Mozilla Firefox, but this happens on Chrome too.
I hope you can find a solution to this, thank you!