Lost Ark Support
Troubleshooting Purchase Failed Error Messages
When turned off, your in-game Steam Overlay causes your micro-transaction purchases to fail. To turn on the Steam Overlay:
Go to Steam on the top hotbar.
Select the In-Game tab, and then turn on Enable Steam Overlay while in-game.
To learn more about Steam Overlay, check out Steam Support.
Purchases within the in-game store require you to confirm your selection before completion. This error message may appear if:
You cancel the purchase before it completes.
You experience any kind of service interruption during the purchase process.
There's a limit to the number of times that you can purchase some in-game store products. Some examples of these limits are weekly purchase limit, and single, one-time only purchases. If you try to make a purchase that falls outside these limits, you'll get the error message.