Triage this issue.

Hello,
 
Thank you for reaching out.
 
Please see the response I sent you via email.
 
Best regards,
Yuliia

Hello,

Thank you for reaching out to us.

We want to address the exception in the provided screenshot.
Please check if you connect the flexmonster.css file correctly. For example, import Flexmonster styles (e.g., into src/index.css) in the React application:

@import "flexmonster/flexmonster.css";

Then, clear your browser cache to make sure the browser does not load cached Flexmonster files. Finally, check if the flexmonster.css and flexmonster.js versions match.

Please let us know if it works for you. Looking forward to hearing from you.

Kind regards,
Nadia