Can't transfer dragons. – Dragon Village 2 : season 3 Review

I love both the first and the this seconded game. However, I am unable to transfer my dragons from the first game and this really bothers me. I've passed ch.37 like it says to, but every time I try to use the Dragon Portal in DV1 it's says "You can transfer dragon to Dragon Village 2, if you didn't setup your nickname". Not sure what this means or how to fix it, but I've spent too much time and effort to not be able to transfer my dragons. Please fix this ASAP!
Review by 3kids in Fl on Dragon Village 2 : season 3.