It’s not a bug the directions say: “ Now comment out that import of the Lobster font (using the HTML comments you learned before) from Google Fonts so that it isn’t available anymore.” It doesn’t appear you did this.
hmmm i think i already import lobster font from google font, look at first image, do you see there is <link href="https//fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
alright i know what is the problem i must delete <!-- lobster font --> comment and put in front of the google font import link, btw i’m sorry for my english and grammar