Update to 12.6.8 – broken site header

Hi team, our site has updated to latest version of Newspaper theme, and it has caused problems with the website header.
Site: https://whitsundaynews.net.au/
Previous header per archive.org: https://prnt.sc/VVH6Hum4pdba
Current header after update: https://prnt.sc/GzMh7fppa3J9
When I try to edit the header area via TagDiv: https://prnt.sc/XoZDOyoqC8yD

What I have done to troubleshoot:
Re-downloaded header and re-installed.
Cleared cache server and client side.
Removed serverside caching completely.
Checked in file structure in cPanel for any notifications of errors in the log (none found).

The tagdiv editor does not seem to be working within the editor anymore. When I click on a column area and try to add a new block element, the block won’t add in. Nor can I click to edit the code shown within the columns. https://prnt.sc/mJGCzNRp-kZR
When I preview the page and check the network cascade, there is 1 jpg with a 404, but everything else is 200. https://prnt.sc/y01OD1uPpnbO

I’m hoping you can assist!

Hi Anamaria,
Thanks for the feedback. I don’t see either of those in my plugins. Where do I find them, as they’re not in the WordPress plugin library, and in my Themeforest account, I only have a download link for Newspaper theme, not plugins.

Oh! I’ve found this now within WordPress via Newspaper > Plugins.
I have TagDiv Composer and TagDiv Cloud Library, but did not install the Opt In Builder as it indicated it was optional.
https://prnt.sc/8y_uU8o50zbZ

We have never used the opt in builder in the past, but I will try activating it before updating the theme and see if that fixes the issue. Thank you so much.