Hi there and welcome
What exactly happens when you try to enter or delete items in the App?
Please let me know
you need to hold down on the item and then a menu appears and you press on this Delete.
There is no trash can
you need to be in Diary, then under the mean, you hold on it. If it is bringing up calorie your in the wrong screen. you do it from the Diary
Open the App please then press on the three lines in the top left and then select Diary there.
This is how you navigate to all functions in the app.
Let me know the results please
ok, sounds like its not compatable with your device then as you should be getting this on the menu.
Instead install MyFitnessPal as I checked and it works for your device and offers all the same functionality and is also free
Download this from the Play Store and install it. Use it and let me know how you go please