Critical error — Site (admin area only) not working.

I'm sure this has been searched, but I logged into my WP site 4-5 days ago and updated the WP installation as well as all the plugins. I was able to access everything. Then 2 days ago, I logged into my site's admin page and updated the plugins again (there were 4-5 that needed another update). After the update, I found this:

https://preview.redd.it/nylfdz6upzqd1.png?width=789&format=png&auto=webp&s=6f188f992433e409299189780e89b77a5f20b89d

The front end of the site works fine. It's only the backend that is giving me this error. But, I need to get in to publish a couple of posts that have been written.

I tried renaming all the plugin folders (one at a time) to xxxxx_old. Nothing.

I renamed the current theme too. No issues.

Does anyone have any other ideas that I can do to fix this? I would appreciate any help possible.
Thanks!

2 Comments
  1. 1- Check your Admin email for mail which will contain a reason
    2- Try enabling Debuging option and check the logs there.

 

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