Clean up your mess and anything you spill. Figure out what the bugs are after. I doubt they are hanging around just for the good smells if there is nothing for them to eat.
That’s the thing though. I’ve only done a few wine fermentations, and I’ve been extremely clean about every aspect. I assumed the yeast smell was an attraction, but I’m beginning to think it was just coincidence. I’m assuming that because during fermentation you definitely smell it. It’s a bread like sour smell that I’ve come to love. Maybe it was just the recent flooding.