Whats going on???

Every time I open the app I can some information but then app freezes up and I have to close it out and reopen it then it freezes again. I have imputed cycle information for 7months prior and it wont give me any chart or graphs. Please fix this problem its really upsetting because otherwise its a really great app. Not to mention I paid $9.99 for it so I kind of expect it to work...

Hollyc5685 about Woman Calendar, v1.6.2