To find and download the exact missing piece, follow these steps:
If you are seeing this filename because your extraction failed or your installation is stuck, try these common solutions:
If your installation crashes, check the "Limit installer to 2GB RAM" box at the start of the setup.
Because "Sword and Fairy 7" on FitGirl Repacks is split into many multi-part .rar or .bin files across different file hosting sites, the exact missing part cannot be guessed from the fragment you provided.
and number from your error message or download folder to the list of links provided on that page.