Have you tried refreshing your game?
Yep i tried it :v like 6 times
Try clearing your browser’s cache and click “Delete all sites” (or delete only SM items) here
This happens when you put less than the number of required items to transform.
For example: If torso asks for 4 items to sacrifice you put 1-3.
We’ll fix this in the next version. It will be unclickable unless you put all items required.