Can't upload files via FTP on Mac OS

It sounds like the account you’re using doesn’t have Write access to the server, you need to confirm that with the server admin.

After long time searching of solution finally found a solution.

Problem is caused by macs MTU settings:

Settings>Network>Advanced>Hardware

Put: MTU:1400

Finally FTP transfer is working properly.

Uploading is not supported by macOS (or OSX) for quite some time through Finder, according to this post. Since the command line utilities for ftp is removed altogether, Finder may not be able to call those. However, try Filezilla or Cyberduck, both of which are Free Software (free as in freedom, though also free as in free beer).