Originally posted by cufq:

My brother is trying to gift me Forza 5 but keeps popping up a error message does anyone know what's up with that?

Generic error when using wallet funds to make the purchase?

This is what is known as a gifting flag on his account when using the Steam wallet as a payment method.

Tell him to contact support. Only support can look into the gifting flag.

Or tell him to use an external payment method to purchase the game gift.