I've recently come back to Subeta after being gone for quite some time,so I apologize if the answer to this question is in any way obvious. I'm working on completing my alphabet sticker collection. I tried to put stickers 'A' and 'C' in my collection (as the achievement page shows I'm missing them). However,I'm not given the option to put them in my collection from my inventory. It only lets me donate,delete or put it in a friend's sticker collection. Is this a glitch?

Edit: Please disregard. I fixed the problem.