This usually means a part did not download completely. Re-download the specific part causing the error.
In the world of digital downloads, large datasets, simulations, and software projects are often compressed into multiple, smaller files to ensure easier transfers. A common format for this is the multipart archive. If you have downloaded a file labeled sc23754-FS22PEv1820.part2.rar , you are likely dealing with the second piece of a larger dataset (e.g., ...part1.rar , ...part2.rar , etc.). What is a Multipart RAR? sc23754-FS22PEv1820.part2.rar
Ensure you have sc23754-FS22PEv1820.part1.rar , ...part2.rar , and any subsequent parts in the same folder. This usually means a part did not download completely