Look for files named SS-LilTS-002.7z.001 , SS-LilTS-002.7z.002 , or similar, including SS-LilTS-002_s.7z (which may be part 1 or a standalone file).
Do you have with similar names? (e.g., .001, .002) SS-LilTS-002_s.7z
To successfully extract or use this file, you likely need all parts of the archive. Look for files named SS-LilTS-002
did you download this file from? (e.g., a specific creator's Patreon or store) Look for files named SS-LilTS-002.7z.001