[devarts]

Hello, I am not sure if this is relevant to theme, but I am trying to connect WooCommerce PayPal Payments plugin and getting an error like “Checkout form saving failed: Could not validate nonce”.. using Elementor Pro, none of LMS plugins, JetPopup, JetElements For Elementor.. I am waiting for these plugins to update them, if that helps.. but if you have any ideas?
I tried so far to disable Elementor, change to a default theme, disable some plugins that might occur this error.. no luck.. Anyone, with same issue maybe? any ideas ?

thanks in advance

[serkan]

Hi @devarts
The error “Checkout form saving failed: Could not validate nonce” typically occurs when there’s a mismatch or issue with security tokens (nonces) in WordPress. This can be caused by plugin conflicts, caching issues, or even outdated components. Here are some steps you can try to resolve the issue:
1. Check WooCommerce and PayPal Plugin Settings
Ensure the WooCommerce PayPal Payments plugin is properly set up with correct API credentials.
Re-save the settings in the WooCommerce → Settings → Payments tab.
2. Verify Permalink Settings
Go to Settings → Permalinks in your WordPress admin.
Resave the permalink structure to refresh the rewrite rules.
3. Clear Caches
Clear all caches in your site, including those from caching plugins like WP Rocket, W3 Total Cache, or LiteSpeed Cache.
If your web host uses server-side caching, clear it via your hosting control panel.
Clear your browser cache and try again.
4. Disable Third-Party Plugins (Again)
To isolate the issue, try disabling all plugins except:
WooCommerce
WooCommerce PayPal Payments
Then test the checkout again. Gradually re-enable plugins to identify any conflicts.
5. Debug Mode

define('WP_DEBUG', true);
define('WP_DEBUG_LOG', true);

Look for errors in the wp-content/debug.log file that might give more insight into what’s causing the issue.
6. Server-Side Issues
Ensure your server meets the requirements for running WooCommerce and its plugins (PHP version, memory limits, etc.).
Check error logs on your server for additional details.
7.Contact Support
If the issue persists, reach out to the WooCommerce PayPal Payments plugin support team.
Include:
Steps you’ve tried.
Any error messages from the debug log.
Details about your WordPress setup (theme, plugins, hosting, etc.).
Let me know if any of these steps worked or if you’d like help with debugging further!