The 'Local Studies' section has the order of open and closed reversed from the other sections. Your code is trying to access 'Local Studies' then array element 0 and then hash key 'open'. However, your data structure has the hash key 'closed' for array element 0 under 'Local Studies'. Similarly, your code is trying to access 'Local Studies' then array element 0 and then hash key 'closed' instead of hash key 'open'. At least, that's my guess as to what's going on.