Magento 2.3 Error

Has anyone received this error?

(unknown) Fallback to JQueryUI Compat activated. Your store is missing a dependency for a jQueryUI widget. Identifying and addressing the dependency will drastically improve the performance of your site.

It shows up when inspecting any page on the site (home, product, etc). I am thinking it’s related to the theme (Porto), though not sure. Any help is welcome. . .

submitted by /u/aolrules
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