Error Code 500: Server Not Responding

This app is terrible compared to UA & Delta. I constantly have to close and reopen the app because I get Error Code 500. The people giving this app 5 stars must love the ability to NOT be able to check in or NOT be able to select seats. It is if this app is targeted to people who still print boarding passes and dont have a need for an app. I fly once a week out of Charlotte thus Im stuck with AA. The unreliability of this app is beyond frustrating.

Disney Enemy #1 about American Airlines, v4.8.0