Hello,
You reset the site width to 0 + enabled header builder but did not finish the building of the header. I have created header for you and changed the site width http://prntscr.com/r0671t . Watch video tutorial on how to edit header using header builder if you want to change something https://www.youtube.com/playlist?list=PLMqMSqDgPNmDu3kYqh-SAsfUqutW3ohlG
Regards
