The extractor can't find the next part. Ensure all files are in the same directory.
Many Sagem-related files found on forums are password-protected. Check the original source or website where you found the link for the extraction key.
The names must be identical except for the part number. If one is named Sagem.part3(1).rar , rename it to Sagem.part3.rar so the extraction software recognizes the sequence.
You cannot extract Sagem.part3.rar by itself. You must have every single part of the sequence in the same folder on your computer. Make sure you have Sagem.part1.rar , Sagem.part2.rar , and any subsequent parts.