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Hello,
I recently installed the free version of W3 Total Cache on my WordPress website and assumed all was well. However, I’ve just deactivated it because I discovered that it seemed to be causing an error message (Error: Nonce Security Check Failed) when adding an item to the shopping cart. At least I assume this plugin was the problem because my website seems to work again correctly since I deactivated your plugin.
I would like to re-activate W3 Total Cache because of its advantages, but I don’t want any issues. Is there something that perhaps I was not doing correctly, i.e., in settings? If you do respond to this, please no technical jargon because I probably won’t understand what you’re trying to explain.
Thanks very much.
Hi Julie, sorry to hear about the problems adding items to the Cart on your website!
Nonce errors can sometimes happen due to the Object Cache settings, and if your website currently has that enabled then that might explain where this issue is coming from.
First, navigate in your WordPress dashboard to Performance > General Settings and look for the Object Cache section there to see if it is turned on. Then, if Object Cache is enabled, go to Performance > Object Cache and make sure that Enable caching for wp-admin requests is deactivated.
I also located a guide from the WooCommerce team that provides some configuration suggestions on how to get WooCommerce to work with W3 Total Cache that offers some additional solutions you can try to get things working as expected.
Please let us know if there is anything else that we can do to help!
Sorry I’ve taken so long to get back to you. Thanks for your helpful information. There was actually a box I needed to check within the settings of the WP Simple PayPal Cart. Once that was checked, the problem disappeared. Thanks again very much.
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