Ultimatum requires you to have an environment with PHP5 or higher, MySQL 5 or higher server with WordPress installed and running. We have tested Ultimatum with all operation systems and many hosting companies. Below list is a simple check list for any WordPress site. Please ensure your environment complies with them.
Ensure your host has the minimum requirements to run WordPress
Always make sure you are using the latest version of WordPress
Make sure your FTP and Database passwords are secure
Make sure your WordPress password is secure