The error message "You have users in the group 'clsudoers', 'clupeid' or both." typically occurs during the installation of CloudLinux when the system detects that there are existing users in the groups 'clsudoers' or 'clupeid'. These groups are used by CloudLinux for specific permissions.

To resolve this issue, you have a few options:

Option 1: Remove Users from Groups

1. Identify Users: Determine which users are in the 'clsudoers' or 'clsupergid' groups.

2. Remove from Groups: Remove these users from the groups using the following commands:

   bash

2. sudo gpasswd -d username clsudoers sudo gpasswd -d username clsupergid

   Replace username with the actual username.

3. Re-run Installation: Attempt to install CloudLinux again.

Option 2: Merge Groups

1. Merge Groups: If the users in the 'clsudoers' and 'clsupergid' groups have similar privileges, you can consider merging them into a single group (e.g., 'cloudlinux-users').

2. Move Users: Move the users from 'clsudoers' and 'clupeid' to the new group:

   bash

2. sudo gpasswd -m username cloudlinux-users

3. Update CloudLinux Config: Modify CloudLinux configuration files to use the new group name.

4. Re-run Installation: Attempt to install CloudLinux again.

Option 3: Backup and Reinstall

1. Backup Data: Ensure that you have a backup of your important data and configurations.

2. Reinstall OS: Reinstall the operating system, ensuring that no users are in the 'clsudoers' or 'clsupergid' groups before installing CloudLinux.

3. Install CloudLinux: After a clean installation, install CloudLinux without encountering the error.

Option 4: Contact CloudLinux Support

If none of the above options work, it's advisable to reach out to CloudLinux support for specific guidance on resolving this error in your particular environment.

Always make sure to back up your data and configurations before making significant changes to your system. This ensures that you can easily revert to a working state if any issues arise during the process.