Google has changed its URL for embedding fonts. If you're not using the latest LCARS HTML file beginning October 30, 2021, you will need to update your link in the <head> section of your HTML pages to the following:
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Antonio:wght@400;700&display=swap" rel="stylesheet">
This will also fix an issue with the way bold fonts were being displayed in Apple IOS.