disabled all plugins but sitemap page critical error

Hello,

We apologize for the issue you are facing with the Rank Math Sitemap. It sounds like you’ve already taken several steps to troubleshoot the problem, which is great.

Since you mentioned that you are still encountering a fatal error even after disabling all plugins and switching to a default theme, this could be related to a conflict with your server or a specific configuration issue.

Here are a few additional steps you can try:

1. Check Server Configuration: Ensure that your server meets the requirements for running Rank Math. Sometimes, server settings can cause issues with plugins.

2. Review Error Logs: Check your server’s error logs for any specific messages related to the fatal error. This can provide more insight into what might be causing the issue.

3. Enable Debugging: You can enable debugging in WordPress by adding the following lines to your wp-config.php file:

   define( 'WP_DEBUG', true );
   define( 'WP_DEBUG_LOG', true );
   define( 'WP_DEBUG_DISPLAY', false );

   This will log errors to a debug.log file in the wp-content directory, which may help identify the problem.

4. Check for PHP Version Compatibility: Ensure that your PHP version is compatible with the latest version of Rank Math. Sometimes, using an outdated PHP version can lead to issues.

5. Contact Hosting Provider: If none of the above steps resolve the issue, it may be beneficial to reach out to your hosting provider for assistance. They may have insights into server-level issues that could be affecting your site.

If the problem persists after trying these suggestions, please reply to this ticket, and a human agent from the Rank Math Support team will take over and assist you further.

Thank you for your patience, and we hope to resolve this issue for you soon!

Sources:
Fatal Error Happening on Some Installations After 1.0.49 Update » Rank Math

Hello,

Thank you for contacting Rank Math support.

To help you investigate this issue, we might need to take a closer look at your website and settings. Please follow these steps:

• Edit the first post on this ticket and include your WordPress and FTP logins in the Sensitive Data section. This is a secure section that only our support staff can access.
  
• Make sure you take a complete backup of your website before sharing the information with us.
• If you prefer, you can use this plugin to generate a temporary login URL to your website and share that with us instead: https://wordpress.org/plugins/temporary-login-without-password/
• You can also use this plugin to monitor what changes our staff might make on your website (if any): https://wordpress.org/plugins/wp-security-audit-log/

We appreciate your cooperation and patience. Thank you for choosing Rank Math.

Hello,

It seems that the HTML Sitemap feature is causing an error on your site. We have temporarily disabled this option while we conduct further investigation.

Please keep the option disabled until we have resolved this issue for you.

Thank you for your patience and cooperation.