Issue with Cache

Hi,

Currently, I’ve been using LSWP+Quic.
I’ve a problem with JQuery, sidebar, and cache. The sidebar has sticky function by JQuery. However, sometimes the sticky doesn’t work at some pages even though everything is okay when I log in.The problem has only happened when I log out.
The sample page is stuck(I’ll purge it soon, though).
I know the sidebar functions doesn’t work like this.
https://gyazo.com/14f5bff46ebfa9239c76579386c5fd4b

Besides, in case I clear the cache, then it becomes fine. But other pages will have same issue. I have tried a tons of setting like excluding JQuery, cache ON&OFF, changing JQuery Ver. and etc.

I couldn’t have find any clues at all.
If you know anything, I’d appreciate it.

Thank you,

The page I need help with: [log in to see the link]