I'm still working to sort this out, but eventually updates in the underlying blog platform have come into conflict with the theme. I didn't catch it because, bluntly, I haven't been posting. I'm temporarily resorting to the default theme, but that lost me some of what used to be the sidebar modules and navigation.
I'll either end up paying for an update and updating the sidebar elements, or finding another clean looking theme.
As to posting, no promises. I don't plan on moving to substack, but it's tempting. I want control over my own content, no matter how friendly substack appears to be at this time. That said, not maintaining all of this, and dealing with fixing compatibility and layout issues as the underlying software is updated for both good (security) and lame (shiny new features I don't care about because I just want a place to post) reasons has an appeal.