Unable to confirm Trade Offer

If you encounter a situation where you cannot confirm a Trade Offer in the Steam App, please try restarting the Steam App and confirming again. If the error of confirming the Trade Offer occurs multiple times, please promptly check your Steam trade history to see if there are multiple canceled Trade Offer records, and check your friends page to see if there are any blocks. If you find the above situations, your Steam account may be at risk of being compromised. Please promptly change your Steam password, Trade URL, and API Key.