VoxTrain Help!!! – Voxtrain. Singing Lessons. Learn to Sing. Review

This app is most definitely rated 5 Stars. But please help I am on the 3rd week and the app keeps not allowing me to sign in. It won’t even allow me to register as a new user because it won’t accept any of my typing. It keeps saying it is in the wrong format l??? Please help I love this app!
Review by Raven1394 on Voxtrain. Singing Lessons. Learn to Sing..