Tested on Microsoft Edge Version 92.0.891.1 (Official build) dev (64-bit) & iPadOS 14.6 (iPad 6th gen) Safari
Users are unable to complete a purchase of Minecraft Dungeons items within their cart due to the GO TO CHECKOUT appearing grey and is unclickable.

1. Open an In-Private/Incognito Window (to avoid interface from extensions & cookies)
2. Add any item to the cart.
3. Click on Cart (to arrive at minecraftdungeons.net/cart/ )
4. Click on GO TO CHECKOUT
5. Sign in with a Microsoft Account, following any log in prompts shown
   Expected result: a Green, clickable GO TO CHECKOUT button and continues purchase procedure.
   Actual Result: a Grey, unclickable GO TO CHECKOUT button that prevents continuation of purchase procedure. In the developer error console: instrument.js:136 POST https://api.minecraftservices.com/order/validate 500 is displayed.