RELATED TO: RealHomes Theme
The issue has been resolved in the latest version of the Realhomes theme

If you face a warning (error) after the recent update of RealHomes then simply navigate to DashboardReal HomesCustomize Settings → Styles → Typography and select Default for Base Typography, Headings Typography, and Secondary Typography option as demonstrated below.

It will fix the problem. Please sign up at our support center and create a support ticket for any further assistance or question, and our support team will be happy to assist you.