Coffee spill smell and stuck key

Hi recently I spilled some coffee on my 13 inch Mac Pro 2020. It works fine. But my problem is the smell it’s gives out. Does anyone have a solution to this?also I removed some keys to clean it in case the coffee got in it. All of the keys snapped back perfectly. my 4 key did snap back, but it’s very low and stuck there. Even if I pull it out and put it back in it still goes down again. None of the latches are broken and I’m wondering what I did wrong?