Problem: You are trying to change the payment method but encountered an 'unknown parameter: order' error. Solution: This was a known issue that we have recently fixed. We recommend trying to change the payment method again now. If you still experience issues, it might be because the solution is outdated or not applicable to your case. We highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML support forum for further assistance.
