It appears that Page Builder is calling the Nunito font but it is incorrectly calling it so Google won't return the font. This is what appears in my head:
<link href="/components/com_sppagebuilder/assets/css/magnific-popup.css" rel="stylesheet" />
<link href="/https://fonts.googleapis.com/css?family="Nunito":100,100italic,200,200italic,300,300italic,400,400italic,500,500italic,600,600italic,700,700italic,800,800italic,900,900italic&display=swap" rel="stylesheet" />
<link href="/components/com_sppagebuilder/assets/css/color-switcher.css?032af75ad5933f9f9a025db2a15c10bb" rel="stylesheet" />
It returns NS Error Corrupted Content and the font is not found but if you call it without the quotes """ it works perfectly.
If you can quickly let me know where or how to fix this i can do it. If not and until i will keep looking in the code. I can not find it set anywhere in settings in page builder or the template dryad