How to fix it Briefly unavailable for scheduled maintenance. When WordPress generates a file type .maintenance in the root path of the installation. With normal behavior, the update script completed and sometimes WordPress auto-removes the .maintenance file. In the case of an interruption of some sort, this file does not...
In this guide, we will walk you through the basic installation process of WordPress on a Debian 9 VPS with Nginx, MariaDB and PHP 7.1. WordPress is the most popular CMS in the world with unlimited customization options. This should work on other Linux VPS systems as well but was tested and written for Debian 9.