Hey!
Thanks for reaching out to us!
When we point out a redirect chain, the idea is to reduce the number of redirects in total.
Let's say you had three URLs - URL A, B and C. URL A redirects to URL B, which redirects again to URL C. You'd want to remove the redirects for URL B in the middle, so that URL redirects straight to URL C.
I've had a look at your Campaign and one of the redirect chain's we are flagging up: https://www.screencast.com/t/kHnwGBcdvb (I used a third party tool - https://httpstatus.io/ ) - As you can see there are 3 redirects in place, would it be possible to cut it down to just one redirect? This minimises moving parts and would fix that redirect chain.
Of course, it's best to check with your website administrator that this is the best move in your case, as each site is completely different.
Unfortunately I am not a web developer so cannot advise on the code within your page, just the tools we provide 
Feel free to write in to help@moz.com if you would like to follow up with any specific questions!
Thanks!
Eli