Upload File FTP

I am building a script that takes a file and then uploads it FTP. The problem I am having is I keep getting an error 530. Here is the function I created to do this. Note I xxx in sensitive data

functionftpFile { 

$userName='xxxxxxx'

 $password='xxxxxxxxx'

$source="\\xxx\xxxx\\xxxxxx.xls"

$destination="ftp://xxx.xxxx.xxx/xxxxxx.xls"

$cred=New-ObjectSystem.Management.Automation.PSCredential-ArgumentList @($userName,(ConvertTo-SecureString-String$password-AsPlainText-Force

))

$wc=New-Object

System.Net.WebClient

$wc.Credentials =

$cred

$wc.UploadFile($destination,$source)

$wc.Dispose();

Write-Host-ForegroundColorGreen"FTP upload successful!"

}