Strange smell in kitchen

Hi everyone, I have a ninja airfryer and needed to clean inside the lid. Despite many attempts of s.teaming its lemon and bicarbonate of soda we eventually had to take the grill guard off. This was fine but now I am left with a very strange smell around the worktop. The kitchen is only six months old, the fridge and freezer fit underneath and I have cleaned it repeatedly but can’t get rid of the smell. There is a gap between the top of the fridge and the worktop and this is where the smell is. Is it the repeated steaming I did ? I am at my wits end with it so would be grateful for any suggestions..thank you