Main logo/INDEX page banner

Trying to upload a new logo under the “Elisium Logo Options” tab in the APPEARANCE settings… Nothing happens. I’ve tried re-sizing, using .png, .jpg…I’ve used different browsers. Nothing is working and the banner-head on m home page now is the default text titles for the website.

I’ve tried putting the original logo back there, from when I first opened the development site. It won’t load. Dev site: http://frc.sparq2flame.com

Is this a WP 3.8.3 issue?

Thanks for your help.