4.13.2.sp2 To 4.13.3 Update Error

I updated my site from 4.13.2.SP2 to 4.13.3 and now my category page links all point to the Store Closed page but the site is open. The product links from home page sliders work fine. I was able to narrow it down to that update using another copy of my store.

How do I roll back that update from the backup file? Do I just download that backup zip and install it as a manual update?

I updated my site from 4.13.2.SP2 to 4.13.3 and now my category page links all point to the Store Closed page but the site is open. The product links from home page sliders work fine. I was able to narrow it down to that update using another copy of my store.

How do I roll back that update from the backup file? Do I just download that backup zip and install it as a manual update?

Can you provide an example of such category page? I assume you see the Service Unavailable message, not the store closed page.