Nothing showing in my app but I can see my stuff on my computer, and now my app keeps crashing. Help.

Hey guys I did my weekly planning and put in all my stuff for this week but today when I open my app there is nothing... I freaked out and opened up my computer and I can see all the info there but still not in my app. I tried opening and closing the app, logging out and back in. My app keeps crashing. Help please, i'm not paying for this if I can't use my app.