Hi Chethan, This is just with WooCommerce and the standard Authorize.Net
plugin: https://docs.woocommerce.com/document/authorize-net-cim/
Whenever a customer tries to place an order and their Email address for
their WooCommerce account has a + charac...
We're also having the same issue starting yesterday. Many of our
customer's accounts have a valid + in the email address and the payments
are now getting this error when trying to place an order.