Was working great until...

I used this app for three days and it was perfect, but last night and today the app wont open. It freezes and crashes anytime I try to open it. I even uninstalled and reinstalled it but it wont let me log in; it keeps crashing every time I enter my info and hit the login button. Please fix because I loved it and I have all my measurements saved in it

Angel5218 about My Shake Day