Help!!! – Frame Swagg - Photo collage maker to stitch pic for Instagram FREE Review

I have loved this app for years. I purchased the extra layouts yesterday and am having all kinds of problems. Every time I click to add a picture and my camera roll should pop up I get a white screen and can’t do anything in the app! How do I fix this?
Review by LJoCrow on Frame Swagg - Photo collage maker to stitch pic for Instagram FREE.