X-Pro: "The Preview could not load...." Error 500

@babel/polyfill is loaded more than once on this page. This is probably not desirable/intended and may have consequences if different versions of the polyfills are applied sequentially. If you do need to load the polyfill more than once, use @babel/polyfill/noConflict instead to bypass the warning.

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Hello @mottafx,

Thanks for writing in! Can you please confirm that you have updated to the latest versions?
Our latest versions are:

  • X theme 6.4.6
  • Cornerstone 3.4.6
  • WordPress 5.0.3

This latest release contains fixes for several issues so be sure to check out the changelog (http://theme.co/changelog/).

_After doing the updates, always remember to clear all caches (if you are using WP Rocket, WP SuperCache or W3 Total Cache) when updating so that the code from the latest release is always in use. This will help you to avoid any potential errors.-

Please let us know how it goes.

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