<script>var et_site_url=’’ et_post_id=313;function et_core_page_resource_fallback(a,b){“undefined”===typeof b&&(b=a.sheet.cssRules&&0===a.sheet.cssRules.length);b&&(a.onerror=null,a.onload=null,a.href?a.href=et_site_url+”/?et_core_page_resource=”+a.id+et_post_id:a.src&&(a.src=et_site_url+”/?et_core_page_resource=”+a.id+et_post_id))}</script>

Why This Error Occur

This is because you have enabled the Static CSS File Generation option in Dashboard => Divi => Theme Options => Builder => Advanced. This option generates a CSS file to store all of the Divi custom styles which reduces the server requests and gives you extra points on those speed test services

Fix The Error

In this case, we suggest that you disable the Static CSS File Generation option in Dashboard => Divi => Theme Options => Builder => Advanced

That’s it.