WordPress stuck in maintenance mode

I was updating a couple of plugins in this WordPress site, which I usually do when I get update notifications with no issues. This time however the message in the screenshot below appeared and would not go away.

Briefly unavailable for scheduled maintenance. Check back in a minute.

To fix this, you need to rename or delete the .maintenance file.

cPanel

Login to cPanel and click on File Manager

cPanel file manager

Click on the public_html directory

The file is hidden (it’s preceded with a .), so to view hidden files click on Settings on the top right of the page.

cPanel settings, checked show hidden files (dotfiles) check box

Check the Show hidden files box and click save

You will now see the .maintenance file, rename or delete it and you should be able to access your site again.