Hello, Zheng Junfeng,
Thank you for reaching out to us. We apologize for the inconvenience caused by the 500 error. We suggest that you refer to the Elementor official article here: https://elementor.com/help/publish-update-button-not-work/ for assistance. Additionally, we recommend that you contact the Elementor Pro plugin support team for further assistance.
If you need any further assistance, please do not hesitate to contact us. We are always here to help.
Thank you for your inquiry. Have a nice day.
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