Module 3 milestone 2 error

put upload.txt
local: upload.txt remote: upload.txt
200 PORT command successful. Consider using PASV.
550 Permission denied.

I am getting this error
I have tried all the solutions that were given on the forum,

permission denied means you don’t have permission to upload that file just checkout file permissions and search for command how to change that this will help

https://www.guru99.com/file-permissions.html

i used " chmod +rwx upload.txt" but it still gives the same error
can you please give me some hint i am stuck from a long time

same happening wid me…have u resolved this one