Fonts not appearing on other devices/browsers

Hello!

I made another post here earlier, but had to make a new one because I realized the font issue was not only on mobile.

https://colorlibsupport.com/t/fonts-not-loading-on-mobile/
(Also, I figured out a way to put my own graphics in, but decided to use the FontAwesome icons because they work well for now and I don’t feel like doing all that customization right now:))

My site is http://impactivesports.com/ and the fonts that should show up are Roboto Condensed (Italic Bold) for the Jumbotron with Roboto and Arimo sprinkled throughout the subheaders and body. I noticed that everything works for IE, but Mozilla doesn’t like Roboto Condensed on my machine.

Overall it still looks fine, but I’d like to see if there is a workaround.

Thanks so much!