Something wrong? – Guitar Tabs X - tabs editor Review

Hello Yesterday I bought the application but it only allows me to make 4 tabs. It doesn't let me save and it changes the name of all the projects to the last name. What do I use? I bought this app because I found it very good and I even paid on my other iPad for the month but it the same what is wrong?
Review by Mardonio Cordoba on Guitar Tabs X - tabs editor.