Title: Security Failure Error
Last modified: August 22, 2016

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# Security Failure Error

 *  Resolved [xtensions](https://wordpress.org/support/users/williamews/)
 * (@williamews)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/security-failure-error/)
 * Hello. Started getting the following error after updating to the lastest version
   of MailPoet. “Request error not JSON:<h2>Security failure during request</h2>”
 * Thanks for the support.
 * [https://wordpress.org/plugins/wysija-newsletters/](https://wordpress.org/plugins/wysija-newsletters/)

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [Wysija](https://wordpress.org/support/users/wysija/)
 * (@wysija)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199656)
 * Hi, what’s the action you’re trying to do that you are seeing this error message?
 *  Thread Starter [xtensions](https://wordpress.org/support/users/williamews/)
 * (@williamews)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199695)
 * Thanks for the response. I get the above error message when trying to send a 
   preview. I also jusr found out that I get error even when I try to send newsletter.
   I disactivate all plugins, but nothing changed.
 *  [Wysija](https://wordpress.org/support/users/wysija/)
 * (@wysija)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199701)
 * Hi williamnews,
 * Then on this case, please get in touch with us here: [http://support.mailpoet.com/](http://support.mailpoet.com/)
   we need to ask private details from your website.
 * Don’t forget to mention this support thread (forum topic).
 *  Thread Starter [xtensions](https://wordpress.org/support/users/williamews/)
 * (@williamews)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199702)
 * I have already been talking to **Rafael** in your support team and gave him our
   login credentials, but they still couldn’t solve the problem. Could you please
   send me the older version because the older version was working for us just fine.
   Thanks!
 *  [Wysija](https://wordpress.org/support/users/wysija/)
 * (@wysija)
 * [11 years, 9 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199711)
 * You can download older versions from this URL: [https://wordpress.org/plugins/wysija-newsletters/developers/](https://wordpress.org/plugins/wysija-newsletters/developers/)
 *  [webdesignerwp](https://wordpress.org/support/users/webdesignerwp/)
 * (@webdesignerwp)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199769)
 * For anyone else who has this problem, I clicked the convert to Beta link at the
   bottom of the screen and that cleared up this and another problem.
 *  [Wysija](https://wordpress.org/support/users/wysija/)
 * (@wysija)
 * [11 years, 6 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199772)
 * Always make sure to upgrade to the latest version, we are constantly fixing those
   bugs.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Security Failure Error’ is closed to new replies.

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 * 7 replies
 * 3 participants
 * Last reply from: [Wysija](https://wordpress.org/support/users/wysija/)
 * Last activity: [11 years, 6 months ago](https://wordpress.org/support/topic/security-failure-error/#post-5199772)
 * Status: resolved