[Plugin: W3 Total Cache] Self Hosted CDN Isnt Working

Hi, im getting issues to configure a self hosted cdn,the ftp test doesnt work, first of all my dns provider is cloudflare, i have my subdomain pointed to my site and it works, so i’ve contacted their support team but they dont know what’s going on, below is what i’ve done to configure a self hosted cdn:

1.- I created a subdomain to serve as my self hosted cdn:
cdn.straightprofits.com,

2.- Then i create an ftp username: [email protected]
and a password for that username:password

3.- So in w3 total cache i put these settings for a cdn:

FTP hostname:ftp.straightprofits.com (i put that hostname because in my cpanel there isnt a option to create an ftp hostname for my subdomain)

FTP username:[email protected]

FTP password:password

FTP path:/home/straig45/public_html/cdn

SSL support:Auto

Replace site’s hostname with: cdn.straightprofits.com

So i tested ftp and this error came up: Error: Unable to change directory to: /home/straig13/public_html/cdn (ftp_chdir() [function.ftp-chdir]: Can’t change directory to /home/straig13/public_html/cdn: No such file or directory).

Im desperate, im a newbie in this kind of terms and my site its blank cause i cant configure w3 total cache to work with a cdn, if there’s an answer for this can you explain me in a detailed way, as i said im a completely newbie in this stuff.

Thank You!!