Cannot update app or download again

Tried to update app in iTunes… reports as corrupted and will not download. Deleted previous version (v2.0) and it still will not download... reports as a corrupted file. Note: Previous version (v2.0) of app shows a blank icon in iTunes library. The app seems to have updated correctly in both my iPhone 5S and iPad Air (direct wireless update, not thru iTunes).

Rich_S about The Elements by Theodore Gray, v2.0.1