Be sure to change the currency to USD or one of the available real-world currencies if you wish to make a Donation or purchase an Ascendant Status Pass.
If you wish to buy items to use on Our Servers, make sure the currency is in CRD (COTA Credits).
If you are on Mobile, please scroll down to change the the currency. If you do not change the currency and you view an item that is priced in a different currency than what is selected, you will see the item as either "Currently Unavailable", or receive an Error code: EX0. If you have any further issues, please contact Kuma here, or in the Discord.