Thank you for contacting WPML support.
While you are waiting for one of my colleagues to take this ticket and work on it, let me provide you with the first debugging steps or if I can help with the issue quickly.
To ensure the quickest and most accurate support, please provide your debug information so I can look at some of your configurations. We have an excellent article on how to locate it here: https://wpml.org/faq/provide-debug-information-faster-support/.