Trying to fix the designed by Link

https://pastebin.com/5QdNLMdp

Here is the code so far, But for some reason it puts my sites webaddress first when you click on the link.

https://www.lburner.co.uk/wp/

the problem is with the footer right link – designed by https://www.getextra.co.uk

I’m not that good with php but have good knowledge of html/css

Thanks for any help.