Belos Chunky Platform Rainbow sneakers

I bought these brand new years ago and have loved them. They are fun to wear. But like most of the shoes in my closet they got too small overnight. I use to wear a 7-7.5 and now I'm a 7.5 -8 and although these are 8s, they are crushing my toes now. The box is weak and wrinkled. I added tape to hold it together.