Hello,
It is very easy to change the logo.
You can change it in 8theme options >> general >> header settings >> logo image and logo image for fixed header.
And for some pages you have to change them in Pages >> your page >> 8theme layout options >> custom logo for this page : http://prntscr.com/fh9o4y
seems you did not check our documentation or tried to get any hep via live chat.















