User blog comment:Tymotih/problems at gringotts on pottermore/@comment-174.115.144.39-20120816213214

Perhaps it's merely your browser. Was it just the one day you tried it, or have you tried it on multiple occasions? Something similar happened to me, where one day I couldn't get Modern Magical History or whatever it is, but when I went back the next day it worked. Hope you solve the problem.