Solved
I need the time shards!!!
When I was playing the challenge I was tired and not thinking so I made a new save for fun and gathered the rocks, so in one save I have all the materials but the time shards and the other has all the materials but the rocks and I’ve tried to get them but I can’t! There is no option to buy the time shards in the mail box for my other save, I want to finish the challenge but I literally can’t right now. What should I do, is there a fix?
Never mind, I fixed it. I closed the game and reopened it and the option to buy the time shards from the mail box was there. I don’t know why it was bugged though.
