Here is a list of technical hosting requirements:
Apache Server 2. x.x or higher
PHP 7.1.x or higher
MySQL 5.x.x or higher
WordPress 3.0.1 or higher
Allow_url_fopen set to ON in php.ini
Please note that Estatik Premium plugin version will not work on websites hosted on WordPress.com or other platforms that do not provide cpanel or alternative full access to website folders and files.