Erdechu.part2.rar -

This usually means one of the parts was corrupted during download. You may need to re-download Erdechu.part2.rar . Why is it split like this?

Crucially, you cannot extract .part2.rar on its own. For the extraction to work, you must have all parts (Part 1, Part 2, etc.) in the same folder on your computer.

You’ll need a file archiver that supports split RAR files. The most reliable options are: WinRAR : The standard tool for .rar files.