Title: techbygeorge's Replies | WordPress.org

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# techbygeorge

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## Forum Replies Created

Viewing 1 replies (of 1 total)

 *   Forum: [Plugins](https://wordpress.org/support/forum/plugins-and-hacks/)
    In
   reply to: [[PayPal Shopping Cart] Security header is not valid error](https://wordpress.org/support/topic/security-header-is-not-valid-error/)
 *  [techbygeorge](https://wordpress.org/support/users/techbygeorge/)
 * (@techbygeorge)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/security-header-is-not-valid-error/#post-7347263)
 * Hello [@wpgateways](https://wordpress.org/support/users/wpgateways/),
 * I have the same error when clicking on the Check Out button.
    ERROR: Security
   header is not valid.
 * I have verified my API credentials are correct. Above, what do you mean ‘take
   a look at your endpoint’? I am not using Sandbox creds.
 * Thanks very much.

Viewing 1 replies (of 1 total)