Title: Error! Nonce Security Check Failed
Last modified: October 6, 2016

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# Error! Nonce Security Check Failed

 *  Resolved [alyna](https://wordpress.org/support/users/alyna/)
 * (@alyna)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/error-nonce-security-check-failed-2/)
 * Hi, guys! I just installed this plugin and it worked great for a week or so, 
   but yesterday popped-up this message whenever someone tried to make a purchase:**
   Error! Nonce Security Check Failed**. I deactivate the plugin and reactivate 
   it again, and it seemed to work again, but today I have the same problem. Did
   it happened to anyone else? How should I fix it? It makes me lose customers.

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [mra13](https://wordpress.org/support/users/mra13/)
 * (@mra13)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/error-nonce-security-check-failed-2/#post-8259137)
 * I think there is a caching issue on your site. Are you using caching that is 
   not being cleared and getting stale? Your caching should be set to empty the 
   cache every 24 hours or so to make sure the nonce security keys are not getting
   stale.
 *  Thread Starter [alyna](https://wordpress.org/support/users/alyna/)
 * (@alyna)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/error-nonce-security-check-failed-2/#post-8261975)
 * Thank you so much for your quick reply. I just deactivate the Super Cache plugin.
   Let’s see how it works now. I’ll keep you posted.
 * Can’t wait to use the plugin again. Looks great and does wanders! 🙂
 *  Plugin Author [mra13](https://wordpress.org/support/users/mra13/)
 * (@mra13)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/error-nonce-security-check-failed-2/#post-8265127)
 * I think you just need to enable the option in super cache plugin that clears 
   the cache automatically every 24 hours of so. That way the nonce value (it is
   used for security) won’t be stale.
 *  Thread Starter [alyna](https://wordpress.org/support/users/alyna/)
 * (@alyna)
 * [9 years, 7 months ago](https://wordpress.org/support/topic/error-nonce-security-check-failed-2/#post-8269846)
 * Thank you so much for you help.
    Everything works perfect now. Great plugin!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Error! Nonce Security Check Failed’ is closed to new replies.

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 * 4 replies
 * 2 participants
 * Last reply from: [alyna](https://wordpress.org/support/users/alyna/)
 * Last activity: [9 years, 7 months ago](https://wordpress.org/support/topic/error-nonce-security-check-failed-2/#post-8269846)
 * Status: resolved