Also, Check these and setup manually if installer fails.
app/admin/config/config.php:
app/frontend/config/config.php:
$config[‘base_url’] = “http://www.your-website.com/“
app/admin/config/database.php:
app/frontend/config/database.php:
1-
$db[‘default’][‘username’] = “database username“;
2-
$db[‘default’][‘password’] = “database password“;
3-
$db[‘default’][‘database’] = “database name“;