I am meeting a problem when using notepad++.
Here is my problem. I changed something in my file, and tried to save it by notepad++. It said to me File Backup Failed and here is my error as you can see in this picture

It said to me that The previous version of the file could not be saved into the backup directory at ...
I reference this link https://community.notepad-plus-plus.org/topic/20248/the-previous-version-of-the-file-cannot-be-saved-notepad-error-popup
And tried to change the file name, make it to be shorten, as it said, but nothing change.
How can I solve this problem ? Could you please give me some ideas? Thank you very much for your time.
