johannesB-16

Problem:
After updating WooCommerce Multilingual (WCML) to version 5.3.4, the client received PHP warnings related to an undefined property in WooCommerce payment gateways. Downgrading to version 5.3.3.1 resolved the warnings.
Solution:
We acknowledged the issue as known and informed the client that our developers were working on a permanent fix. We directed the client to our errata page for more details: https://wpml.org/errata/woocommerce-checkout-add-ons-and-woocommerce-paypal-payments-fees-not-added-to-paypal-in-multicurrency-setup/. We also updated the client that WCML 5.3.5 was being prepared for release, which should address the issue: https://wpml.org/errata/woocommerce-multilingual-5-3-4-gateway-issues/.

If you're experiencing this issue, we recommend checking the related known issues and verifying the version of the permanent fix. It's also important to confirm that you have installed the latest versions of themes and plugins. If the solution provided here is irrelevant to your case, either because it's outdated or not applicable, please open a new support ticket. We highly recommend visiting our known issues page for the most current information.