Error: Could not validate nonce

We have been experiencing an issue on our website off and on for about 4 months now. The issue always results in the same error message for the user: Could not validate nonce. Obviously this is not ideal as an e-commerce website. The error continues to happen and it always seems attached to the Woocommerce Paypal Payments Plugin. Can you help resolve this issue?

Here’s the entire error message from the data log:
[08-Jul-2021 15:49:27 UTC] PHP Fatal error: Uncaught WooCommerce\PayPalCommerce\Button\Exception\RuntimeException: Could not validate nonce. in /wp-content/plugins/woocommerce-paypal-payments/modules/ppcp-button/src/Endpoint/class-requestdata.php:50

And here’s the rest of the trace:

#0 /wp-content/plugins/woocommerce-paypal-payments/modules/ppcp-button/src/Endpoint/class-dataclientidendpoint.php(69): WooCommerce\PayPalCommerce\Button\Endpoint\RequestData->read_request('ppc-data-client...')
#1 /wp-content/plugins/woocommerce-paypal-payments/modules/ppcp-button/src/class-buttonmodule.php(111): WooCommerce\PayPalCommerce\Button\Endpoint\DataClientIdEndpoint->handle_request()
#2 /wp-includes/class-wp-hook.php(287): WooCommerce\PayPalCommerce\Button\ButtonModule::WooCommerce\PayPalCommerce\Button\{closure}('')
#3 /wp-includes/class-wp-hook.php(311): WP_Hook->apply_filters('', Array)
#4 /wp in /home/granitn5/public_html/store/wp-content/plugins/woocommerce-paypal-payments/modules/ppcp-button/src/Endpoint/class-requestdata.php on line 50

Thanks!

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