To quickly reinstall the application, you can use the command line installation utility script. The script removes the database and creates the database again.
The directories application/data, application/configs public_html/files must be writeable
cp util/dev/scripts/Install/myInstallerValues.php.dist util/dev/scripts/Install/myInstallerValues.php
Edit the file util/dev/scripts/Install/myInstallerValues.php
URL - the install URL of the application privilegedDbUsername - the MySQL database user that can create and delete databases. Usually root privilegedDbUserPassword - the password for the above MySQL user
php util/dev/scripts/Install/Install.php
php util/dev/scripts/Install/DemoData.php