Will not allow me to enter grades

This new update, while making the design quite appealing, is causing me a lot of problems. It is quite easy for an assignment to get deleted when just touching around the app and the only way to bring back the assignment is to create it all over again. The biggest problem that I have is that as soon as I try to add a grade to a completed assignment the app closes. I tried to contact the developer for help but no communication was required. Please help. I want to love this app again.

Ginnyfranks453127 about Grade Hound, v3.0.1