Hey everyone, I'm new to the forums. If anyone has advice/knows what I'm missing here, I would appreciate the help!

I had just hit lvl 30 and a new quest (Brave the Battle Arena) appeared. I was pretty excited, but surprised when the arena didn't appear. It's supposed to be between the top two floating islands, right? Well, I decided it might just need time to appear, so I waited. It has been a couple days and I've now reached lvl 31, and it still hasn't appeared. The begin battle button on the quest did nothing as well.

I am loath to spend gold flippantly, but I decided to spend the 5 gold to skip the quest, thinking the Battle Arena might appear if the quest was completed. Well, the new quest "Go, Fight, Win!" has appeared, but the Battle Arena hasn't. And pressing the green "Win" button on the new quest doesn't take me to a battle as I hoped. Is there some prerequisite I'm missing? Do I have to download something else? Thank you in advance!