Sorry to hear you are having this issue. We are investigating the issue for WP 5.8. In the meantime can you please enable Disable theme styles for table option for that table and test again? You can find the option under Settings > Styles for that table.
Upon investigation we saw that your website is not loading necessary plugin files on the frontend (https://ibb.co/pnyff4X) and also you are using WP Optimize plugin. It looks like a cache issue arised from this plugin. Can you please clear the cache of the WP Optimize and test again?