Warning on Child Theme: “More than one text-domain is being used”

Hello!
Amazing, amazing theme! Thank you so much for it!
I’m working on it on a local host (the link I left it’s just my blog)

I used “Theme Check” and I got the error “More than one text-domain is being used in this theme.”
I created an rtl.css as recommended at https://developer.www.ads-software.com/themes/advanced-topics/child-themes/, but the warning remains.

I appreciate the help!

The page I need help with: [log in to see the link]