The error message "CageFS can't start - Error: current running kernel is NOT supported" suggests that the current running kernel on your system is not compatible with the version of CageFS you're attempting to use.

Here's what you can do to address this issue:

1. Check for CageFS Updates:

   • Ensure that you have the latest version of CageFS installed. If you're using a control panel like cPanel or Plesk, check for updates through the control panel interface.

2. Check Kernel Version:

   • Verify the version of the kernel currently running on your server. You can do this with the command:

     bash

2. • uname -r

   • Make sure that the kernel version is supported by the version of CageFS you're using.

3. Update the Kernel (if necessary):

   • If your current kernel is not supported, consider updating your kernel to a supported version. Consult with your hosting provider or system administrator for the best way to update the kernel on your specific system.

4. Reinstall CageFS:

   • If you've updated the kernel or if you suspect there may have been an issue during installation, consider reinstalling CageFS.

5. Check for Specific Kernel Requirements:

   • Review the CageFS documentation or contact CloudLinux support to see if there are any specific kernel requirements for the version of CageFS you're using.

6. Contact CloudLinux Support:

   • If you're using CloudLinux, consider reaching out to their support team for assistance. They may have specific instructions or recommendations for your environment.

7. Review System Logs:

   • Check system logs (/var/log/messages, /var/log/syslog, etc.) for any relevant error messages or clues about what might be causing the issue.

Remember, making changes to the kernel or system-level configurations can have serious consequences, so it's important to proceed with caution and consider seeking assistance from a system administrator or support if you're unsure about any specific steps.