Font not changed in mobile and only changed in desktop

The "Al Guido" under the quote should be Barlow-bold however in mobile it is showing up as Merriweather. How do I change that so that Barlow bold is shown in desktop and mobile? 

I am using markdown for it. Thank you!

What is page url? We can check problem easier

URL: https://elevatesportsventures.com/csandbox