Wont open

I wanted to launch the app and noticed it was greyed out. So I tried to update the app and it wont open. I tried to delete it and it wont let me delete the app. Its been greyed out for 1.5 weeks. I just paid $7 for this app and only had it for 1 month! Really upset.

MsBrewstrApollo about Ref Guide for Essential Oils, v1.0.7