Hosting accounts have exceeded the allowed limit - Despite Single Domain Usage in Plesk

Issue

We're getting an error in the CloudLinux Manager:

Hosting accounts have exceeded the allowed limit.
Review your hosting accounts to ensure compliance with the allowed limit for your edition. If you want to use CloudLinux's capabilities on a server with multiple accounts, you may consider using CloudLinux OS Shared PRO.

UI example:

The server only has one account (admin) that contains all the subscriptions. If we run the check command, it shows 1 as the number of users.

# plesk db "SELECT COUNT(DISTINCT cl_id) FROM domains"
+-----------------------+
| COUNT(DISTINCT cl_id) |
+-----------------------+
| 1 |
+-----------------------+

Environment

• CloudLinux OS Solo
• Plesk

Solution

CloudLinux Solo, for instance, allows just one user account. CloudLinux OS calculates the actual number of user accounts by counting unique system users (UIDs) actively hosting websites, to which individual LVE limits can be applied. This calculation excludes special users, such as Admin and FTP accounts, which typically share UIDs with regular webspace users.

Plesk assigns the same system user (UID) to all domains within a single subscription. To check the number of users, review the content of this file: /var/lve/panel_users_count.

For example. your server can have separate user accounts associated with multiple Plesk subscriptions, exceeding the CloudLinux Solo limit.

# cat /var/lve/panel_users_count 
7

To resolve this issue, you can either:

• Move the additional accounts to another server,
• Consolidate all domains under a single Plesk subscription, or
• Upgrade your CloudLinux license to an edition that supports multiple user accounts.