Today's date is January 18, 2020. I am currently running WordPress version 5.3.2. I am NOT a WordPress expert by any means. So replies should take that under consideration.

My blog was working fine yesterday. Today I am not able to post any new posts. I made no changes to my site between yesterday (Jan 17, 2020) and today (Jan 18, 2020).

When I enter the posting editor the following message is displayed right below Permalink: ?preview=true:

"You are currently editing the page that shows your latest posts."

I am not currently editing any page.

I installed the Fix Another Update in Progress plugin and ran it. It said "There is no Update lock issue. Continue with your WordPress Update".

I searched the wp_options database file for core_updater.lock and found nothing.

One user answered a similar question by saying the database was full. My provider, Ionos, doesn't restrict my database size as far as I know.

I replaced all of the Wordpress files with the exception of the wp-content folder.

I've basically tried everything I found online about this problem.

I am desperate to post to my blog again. I hope someone can help me.