WordPress error – Briefly unavailable for Scheduled maintenance. Check back in a minute

Today morning, i face one error in wordpress after updating one plugin. which is “Briefly unavailable for Scheduled maintenance. Check back in a minute“. The same error occurred few weeks back but i didn’t pay attention there and resolved automatically next morning. But this time it was necessary to resolve, as i had important work to do.

There is very simple tweek, to resolve this error,

Go to Cpanel or any ftp client and open file “wp-settings.php“.

you will find below line :

// Check if we're in maintenance mode.
wp_maintenance();

Simply comment that line :

// Check if we're in maintenance mode.
// wp_maintenance();

After commenting above line, your wordpress site will run just fine.
To read more about this error, refer this URL.