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I believe that you have a JPS file, not a JPA. JPS is encrypted, JPA is not.

After decrypting the filename, Kickstart tries to see if it can create this file, then proceed with its extraction. Until we start extracting data we can't know if your password is right or not. Since folders don't have any data, we can't know if their name is right or not. That's why this folder with weird characters in the name is created and not removed afterwards.

I believe that the folder, despite its corrupt name, should be possible to be removed using cPanel's file manager. You may have to change its permissions to 0755 first.

Windows and macOS are pickier on allowed filename (and folder name) characters. Since there was a lower-than sign which is invalid under both Windows and macOS, creating the folder failed. That's why you perceive a difference. The software does the same thing on every platform, it's the Operating System filesystem drivers which work differently.

For what it's worth, I have yet to see a file or folder I cannot remove using the command line, i.e. SSH. The trick is that the name has to be escaped, by enclosing it in single quotes:

rm '^x>Æ"∙|ñÏ∓Ã>>ï0"'

(Note that the command above is not accurate, as I am transcribing the filename by sight, and I am missing some of the special characters on the keyboard map. If I could copy and paste the folder name, like you can, things would be much easier).

 this is not bad that this file is created and I just coold delete this folder with a unix/linux command ?

Correct.

I do not know even what name is real

They are both the same. What you need to use with rmdir (not rm, it's a directory hence rmdir is the proper command, sorry) is the one shown by ls.

Hint: in the SSH terminal type rmdir, space, Zp and press TAB. It will autocomplete the rest. Don't try to do the work the computer will gladly handle for you ;)

You're welcome!