Tool Tips for graphs not showing

Recently I noticed the the tool tips that appear when you hover over the graphs on the left hand side of the page (calories and weight change) are not showing any more. They were working till very recently. All other tool tips on page seem to be working normally. I'm using Windows 10 and Google Chrome.

Also noticed that on the Help page, https://cronometer.com/#help , the contact support link does not do anything when you click on it. Even the Email link at the bottom of every page does not do anything when you click on it.