How to Fix Unable to Buy VCoins

Information Provided by Void AKA noktii_quinfall

Go to your Steam Main Window
Click on "Steam"
Click on "Settings"
Click on "In Game" tab on the left.
Check "Enable the Steam Overlay while in-game" option, if it is deactivated, activate it.

If this doesn't help you should make a ticket in ⁠📤│support where you can be further assisted