Are you sure you're signed in to your account? Can you see your ward's/branch's directory and map? If not, then please sign in to your Church Account.
If you're using a mobile device (smart phone, for example), please see the quoted portion of the post immediately before ours.
If you're using a desktop-type web browser, go to the Church website main page and scroll all the way to the bottom. In the menu near the bottom of the page, the right-hand column is labeled 'Resources'. At least for me today, the next-to-last item is 'Patriarchal Blessing'. That link will take you to a page where you can request your blessing.