Hello! :3 I wanted to change the prices but I couldn't. There's an exclamation mark behind it. :( Could someone enlighten me please? XD

Thank you in advance.

They switched the shops over to a new system recently, so the old ones no longer work beyond storing items. If you make a new one and transfer the items over it'll work again.

Thank you! <3 (So I have to start again with the achievements? :v omg)

New Shop Guides Very helpful guide to make the transition smoother!

Thank you this is very helpful! :3