We are sorry to report that a systems error prevents some users from successfully logging into the app. For most users, login trouble can be resolved by the following the steps in this support article: Why can't I log in? If this troubleshooting method does not resolve the issue, it is possible that you are affected by this systems error. We are working to resolve this issue as soon as possible. In the meantime, you can view your itineraries and book travel under your account on the Travelocity website. We apologize for any disruption this causes in your use of the app.