I actually got the same error on google chrome on my desktop, so yeah, it's not the phone or browser.
I've scheduled one character for deletion (bye Tiv), so I'll wait until that's completed and try to create another. I figured cold storage would let me have 5 characters (1 in storage), with 2 on dwilight (1 noble, 1 adventurer, 1 adventurer in cold storage). That's assuming I understand the whole donation goodies thing right. But meh, whatever. As long as Tiv dissapears and my noble can come into being, I'll be happy.