Doesnt download, freezes

Downloading from gmail on my iPhone simply doesnt work. The file isnt even recognized in an attempt to download it to the received folder. It also freezes after a minute or two of being open; I can switch between one or two of the pages but as soon as I try an action (open a file, swipe a file to do an action) the app freezes.

smscott84 about Hightail - Secure File Sharing, v2.5.4