This usually means one of the segments (e.g., part4.rar) is missing or damaged.
Even with the correct software, you may encounter errors. Here are the most frequent issues with files like XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.part1.rar: XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.part1.rar
Prerequisite: Ensure all parts (part1.rar, part2.rar, partN.rar) are in the same folder. This usually means one of the segments (e