Problem: The client is unable to edit their website using WordPress and Elementor Pro due to an error message related to the WPML Sitepress Multilingual CMS vendor code. The error message indicates that headers cannot be modified after they are sent. The issue recurs after an unknown number of page edits, even after deleting and re-adding a user. Solution: We investigated the issue and found that it persists even when the WPML plugin is deactivated, suggesting it is not directly related to WPML. The problem was identified to occur when only the Yoast SEO plugin is active. Updating the Yoast SEO plugin resolved the issue, as demonstrated in a video we shared with the client. If you're experiencing this issue, we recommend trying the following steps: 1. Deactivate the WPML plugin to confirm if the issue persists. 2. If the problem continues, check if it occurs with only the Yoast SEO plugin active. 3. Update the Yoast SEO plugin to the latest version. If these steps do not resolve the issue or if it appears unrelated to the plugins mentioned, it might be due to other factors. In such cases, the solution provided here might be outdated or not applicable to your specific situation. 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.
