Post Installation Problems

That sounds horribly like a hack:

https://codex.www.ads-software.com/FAQ_My_site_was_hacked
https://www.ads-software.com/support/topic/268083#post-1065779
https://smackdown.blogsblogsblogs.com/2008/06/24/how-to-completely-clean-your-hacked-wordpress-installation/
https://ottodestruct.com/blog/2009/hacked-wordpress-backdoors/

That sounds horribly like a hack:

That’s what I was thinking!
@swc76801 could you provide us a link, or view your source code from within your browser to see if you can spot any strange code that could be a symptom of a hack?

RVoodoo – which page do I want to use to inspect the source code — the correct result when I try to go to the Dashboard or the incorrect page that sends me to the install? Would it be better for me to post a copy of the code from both?

Well normally I just look at the source code for your site, front end

I scan the code looking for suspicious stuff….could be anywhere, but most likely down towards the bottom of the source code is where wierd stuff pops up

(That’s just how I start looking, @esmi has more gooder ideas!)

The incorrect page. Drop a copy into the WordPress pastebin and post the pastebin url here

EDIT: A copy of the relevant template file would also be helpful.

As luck would have it, the problem hasn’t occurred today. I’ll drop a copy of the incorrect page as soon as it pops up again. Meanwhile I’d like to share the template file but I’m not sure which file(s) I should provide. I assume it’s not possible to drop an entire folder into the WordPress pastebin. Please tell me which file(s) to use and I’ll take care of it. I apologize for my ignorance.