Requirements problem

Errors found

Configuration sync directory
An automated attempt to create the directory ../config/sync failed, possibly due to a permissions problem. To proceed with the installation, either create the directory and modify its permissions manually or ensure that the installer has the permissions to create it automatically. For more information, see INSTALL.txt or the online handbook.
File system
Writable (public download method)
The directory sites/default/files is not writable. An automated attempt to create this directory failed, possibly due to a permissions problem. To proceed with the installation, either create the directory and modify its permissions manually or ensure that the installer has the permissions to create it automatically. For more information, see INSTALL.txt or the online handbook.
Private file directory not set
The file_private_path needs to be set in settings.php. It needs to be writable by the web server.
Settings file
The Settings file is not writable.
The Cloud Orchestrator installer requires write permissions to ./sites/default/settings.php during the installation process. The webhosting issues documentation section offers help on this and other topics.

OK

Web server
Apache/2.4.29 (Ubuntu)
PHP
7.2.24-0ubuntu0.18.04.17
PHP extensions
Enabled
PHP OPcode caching
Enabled
Random number generation
Successful
Database support
Enabled
PHP memory limit
128M
Unicode library
PHP Mbstring Extension
Settings file
The ./sites/default/settings.php exists.
Check the messages and try again.