archived gigpress page overlaps sidebar layout

Hi,
I use gigpress for my gig listings: and have a different page with my (archived shows) via gigpress. But for some reason, that one page on my website doesnt work with the widgets that appear on the right sidebar on all of my web pages.

Is there a recommended way to fix this?

https://stephensimmonsmusic.com/?page_id=618

thanks

-s

https://www.ads-software.com/extend/plugins/gigpress/