Accordion slider styles won’t load

I’m using Divi and using customized theme from previous admin. I’m trying to use a horizontal accordion slider using the “Accordion Slider Lite” and applying the shortcode on the Divi module.
There was a warning saying “Warning: The stylesheets were not loaded! You will need to change the Load stylesheets setting from Automatically to On homepage or On all pages. You can set that here.” when I’m previewing it on divi and wont load the style my site.

I’ll give more information if needed.