Your above the fold CSS Empty

Hi,

When activate this plugin under footer appears:

Your above the fold CSS (copy the text bellow), but the critical css dont appears.

In chrome console appears:

Uncaught DOMException: Failed to read the ‘rules’ property from ‘CSSStyleSheet’: Cannot access rules
at https://getmovil.com/apk/files-go/:252:22
at StyleSheetList.map (<anonymous>)
at findCriticalCSS (https://getmovil.com/apk/files-go/:251:39)
at https://getmovil.com/apk/files-go/:289:2
at https://getmovil.com/apk/files-go/:290:3

Thanks for you great support.

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