How to Change Footer Copyright Text?
Go to following.
Appearance >> Customizer >> Affiliate Booster Theme Panel >> Footer Options
Scroll till bottom to see this option.
You can remove Powered by [affiliatebooster]
Note: If you want to make money with the theme, you can replace [affiliatebooster] with your affiliate link.
<a href="YOUR-AFFILIATE-LINK">Affiliate Booster Theme</a>
Join our affiliate program here >> https://www.affiliatebooster.com/affiliate-signup/
Change the link and start making money with your blog's footer. :)