Wont Open

I got this app yesterday & used it for a day & it was great. But now it wont open at all. I tried re-installing it & it still doesnt work. I would gladly give it 5 stars if it was capable of working for more than one day. Please fix this.

MadonnaStar about GIPHY Stickers. The Animated Sticker & Emoji App, v2.2.0