Hello,
1) Theme Options > Header builder > edit content of the header http://prntscr.com/tj06ij https://www.youtube.com/watch?v=RbdKjQrFnO4&list=PLMqMSqDgPNmDu3kYqh-SAsfUqutW3ohlG
https://www.8theme.com/topic/language-switcher-widget/
2) Appearance > Widgets > delete content from Footer Copyrights Right area.
Regards