No longer works – Frame Swagg - Photo collage maker to stitch pic for Instagram FREE Review

To the Frame Swagg App Developer: Help! This is my favorite app, but because of all the updates to the iPhone in the last 3 years, it no longer works. I have IOS 11. Every time I click the frame to add a picture, it should go over to my camera roll, but my screen just goes white (or blank). Please help!
Review by PhotoMama27 on Frame Swagg - Photo collage maker to stitch pic for Instagram FREE.