引用自 Stasiuek ♥♥♥♥♥♥♥♥♥♥：

I cant gift my friend a game

I am gifting friend a gift and its showing a error. after trying 4 times i cant gift anything

Read the error message, the entire message and do what it tells you to at the end of it.

Generic error when using wallet funds to make the purchase?

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

Contact support. Only support can look into the gifting flag.

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