Requirements problem

OK	Web server	Apache/2.4.39 (Ubuntu)
OK	PHP	7.0.33-5+ubuntu14.04.1+deb.sury.org+1
OK	PHP register globals	Disabled
OK	PHP extensions	Enabled
OK	Database support	Enabled
OK	PHP memory limit	256M
OK	File system	Writable (public download method)
OK	Unicode library	PHP Mbstring Extension
Error	Default settings file	The default settings file does not exist.
The Hosted installer requires that the ./sites/default/default.settings.php file not be modified in any way from the original download.
Error	Settings file	The settings file does not exist.
The Hosted installer requires that you create a settings file as part of the installation process. Copy the ./sites/default/default.settings.php file to ./sites/default/settings.php. More details about installing Drupal are available in INSTALL.txt.

Check the error messages and proceed with the installation.