I don't understand why my Paypal Express Checkout is not working

[westseedfarm]

Please copy and paste all your settings from your Admin->Modules->Payment->PayPal Express Checkout screen.
And indicate what version of Zen Cart you're using, and all plugins you've installed.

PayPal Express Checkout (rev1.5.1)
Manage your PayPal account.

Configuration Instructions:
1. Sign up for your PayPal account - click here.
2. Ensure you have entered the appropriate security data for username/pwd etc, below.

3. In your PayPal account, enable Instant Payment Notification:
under "Profile", select Instant Payment Notification Preferences
click the checkbox to enable IPN
if there is not already a URL specified, set the URL to:
http://westseedfarm.com/ipn_main_handler.php
Requirements:
*CURL is used for outbound communication with the gateway over ports 80 and 443, so must be active on your hosting server and able to use SSL.

Enable this Payment Module
True

Sort order of display.
0

Payment Zone
California

Express Checkout Shortcut Button
On

Set Order Status
Processing [2]

Set Unpaid Order Status
Pending [1]

Set Refund Order Status
Pending [1]

Express Checkout: Require Confirmed Address
No

Express Checkout: Select Cheapest Shipping Automatically
Yes

Express Checkout: Skip Payment Page
Yes

Express Checkout: Automatic Account Creation
Yes

Payment Action
Final Sale

Transaction Currency
Selected Currency

Store (Brand) Name at PayPal


Allow eCheck?
Any

PayPal Page Style
Primary

API Signature -- Username
westseedfarm_api1.gmail.com

API Signature -- Password
****************

API Signature -- Signature Code
****************

PayPal Mode
PayPal

Live or Sandbox
live

Debug Mode
Off