1064 - You have an error in your SQL syntax

No, not fixed. I had temporarily removed the "offending" accordion. Just added it back.

ok, just to understand :
when you load the page in your article without accordion : it works

when you load the page in your article WITH accordion : it does not work

the accordion is the Page Builder CK addon ?

Yes you are correct. I have added a new menu item called "Test". It displays {pagebuilderck 1} correctly. And also "Yes" it is the PB accordion block.

I have tested by my side
- article with an accordion
- added {pagebuilderck 2} where 2 is the ID of my page to load

checked in frontend, it works ...
can you please export your page ID 1 and send me the file, so that I can import it and test if the problem is the page

have you tested with another page ?

Sorry Ced, I figured out the issue - pilot error! I had accordions for years 2019 - 2011. Currently, I only have 2 PB pages for the videos created - 2019 & 2018 - {pagebuilderck 1} & {pagebuilderck 2}. I saw I'd gone through all the other accorion items and pre-added links to all the other PB pages which I will be building, but aren't currently built. THAT was the issue. I actually thought of this when I did it and (incorrectly) thought just the showrtcode would display if there was not page to show.