MineOS Plugin Sharing Issue

[ImRedAndYourNot]

I'm currently trying to get FreeNAS to share my MineOS server folder to Windows, I also tried FTP and SFTP. But everytime I get a permission error, am I doing something wrong? I'm trying to put files in '\mnt\{Random folder name}\iocage\jails\mineos\root\var\games\minecraft\servers' through the windows file system.