Cake = Tort.
Not really, there are types of cakes every Pole would call "ciasto" – we are differentiating the two, but for native English speakers apparently "ciasto" and "tort" are the same thing(i.e. a cake). ;-)
but "tort" should be accepted too. Which is what Kendos93 probably meant, as I suspect he is Polish :)
Oh, in that case it should be reported, obviously. ;-)
It is really a shame Duo doesn't have a flag for your native tongue, selectable in profile – I think that would simplify a lot of things for everybody. ;-)