Backup database from command line with mysqldump.
Create a backup of your website files with tar, backup database with phpmyadmin
Add this to your settings.php file when you need more information from your drupal site that is showing the error "The website encountered an unexpected error. Please try again later."
$config['system.logging']['error_level']='verbose';
sudo composer create-project drupal/recommended-project /var/www/html/trusabi.com --no-interaction