Banner doesn't load second or third posts

I placed the bannerspace via shortcode in my footer, however it only displays the first post I have posted within the banner upload. Not really sure why. I’m posting new banners with all of the same details as the first. I’m new to coding, so it might just be something I messed up in the code.

Here’s a link to my site:

http://www.ccimreplay.com
Thanks

https://ww.wp.xz.cn/plugins/bannerspace/