There's a number of reasons this could happen, but the most likely cause is that you have 2 or more accounts in GroupValet. When you log in, GroupValet determines which account to use based on your email/password combination. If we find more than one email/password combination that matches, we'll ask you which account you want to log in as.
If you only see Demo activities and expect to see something different, email us at support@groupvalet.com and we'll rectify the situation for you.