I am very sorry to hear you are experiencing this issue. It is not something I have seen come up before. I also was not able to replicate on my end. I'm curious if you have already attempted to try accessing your account from another browser or computer? It's possible there is a build up of cache or an extension interfering with your current browsing experience. If you haven't yet, try going into Incognito/Safe Mode and see if the issue persists.
If that still doesn't work, please email us at social_support(at)constantcontact(dot)com with your username, the steps you have tried, and a reference to this post and we can investigate further.