The Maintenance Mode error in WordPress typically occurs when WordPress is updating core files, themes, or plugins, and something interrupts the process. During updates, WordPress creates a .maintenance file in the root directory to display a "Briefly unavailable for scheduled maintenance" message. If the process doesn’t complete correctly, this file may not get deleted automatically, causing the site to stay in maintenance mode.
Here’s how you can resolve this issue:
Remove the `.maintenance` File
- Access your website via File Manager in your hosting control panel.
- Locate the root directory of your WordPress installation (usually public_html).
- Find the .maintenance file.
- Delete the .maintenance file.
- Refresh your site to check if it’s back online.
