Hi there team,
So I am just now encountering an issue for buying Royal Crystal as the notification that pops up when I try to buy Royal Crystal is “Purchase Failed”. I had restarted the game, restarted my computer, verified files on steam, and reinstalled the game but I am still having issues.
I am on NA West
Server: Valtan
Main: Hailus
This issue applies to all my characters.
Hello @LoDestroyer
I hope you are doing well.
I apologize for the trouble you’re facing which might be related to Steam Overlay, which when turned off causes your micro-transaction purchases to fail. To turn on the Steam Overlay:
- Go to Steam on the top hotbar.
- Select Settings.
- Select the In-Game tab, and then turn on Enable Steam Overlay while in-game (If the In-game overlay is enabled, please disable and re-enable it).
To learn more about Steam Overlay, check out Steam Support.
In case it does not work then please refer 
If the issue still persists, Please submit a Web Ticket to our support staff to escalate the issue further.
I hope this helps. Cheers! 