1) game isn't running
2) you didn't give trainer admin rights
3) you are using the trainer on classic versions, not remastered
4) something is blocking the trainer (your antivirus, antimalware, firewall, etc.)
no. we are making this trainer mainly because they released the REMASTERED VERSIONS.
Your RUs and most notably THE NUMBER OF SHIPS and TYPES of ship mess with the dynamic difficulty.
it's built into the game so get used to it.