Do you have the or the original source site where you found this link?
If you are missing other parts (like part03 or part05), the archive will be "broken" and cannot be opened. Ensure you have the corresponding .rev (recovery) files if they were provided to repair any corruption. sc22307-DLTWOSH.part04.rar
If you are using Usenet, search for the string sc22307-DLTWOSH on sites like NZBIndex or binsearch.info . Do you have the or the original source
part04 (This indicates it is the 4th file in a set. You will need all parts, e.g., part01 through the final part, to successfully extract the contents). Where to find the full post part01 through the final part
Sites that index Rapidgator, Katfile, or Nitroflare often list these parts together.