Trouble activating a gift on Steam, what should I do?

Question

Steam

Hello, my currency on Steam is Ukraine, the currency is in hryvnia, the card is tied to Ukrainian, there have already been purchases from the card, also in hryvnia. I decided to buy Terraria, a set of 4 games, one went to my library, and the other 3 were in my inventory. I decided to give a friend one game, went to the inventory, selected it, clicked send, and selected a friend. A friend received the game, but when he tries to activate this game, he gets an error that it cannot be activated in his region. Although a friend also has Ukraine