Symptoms

• The following error is shown when trying to activate Imunify:

  CONFIG_TEXT: License Action Required
  No valid license was found for this Imunify360 installation. Please renew your license to continue using all features, or proceed with the downgrade to ImunifyAV/AV+ product.

• An Imunify360 license is reported as invalid upon attempting to register it on a Plesk server:

  CONFIG_TEXT: [2025-02-06 13:36:10] [2025-02-06 13:36:10] Checking if has already been registered... 
  [2025-02-06 13:36:29] WARNING: License is invalid for current server 
  [2025-02-06 13:36:29] [2025-02-06 13:36:29] WARNING: License is invalid for current server 
  [2025-02-06 13:36:29] Register by key... 
  [2025-02-06 13:36:29] [2025-02-06 13:36:29] Register by key... 
  [2025-02-06 13:36:32] WARNING: License is invalid for this server 
  [2025-02-06 13:36:32] [2025-02-06 13:36:32] WARNING: License is invalid for this server 
  [2025-02-06 13:36:32] Registration was not successful. Exiting. 
  [2025-02-06 13:36:32] [2025-02-06 13:36:32] Registration was not successful. Exiting.

• The license status is invalid upon checking with the Imunify CLI tool:

  # imunify360-agent rstatus
  WARNING: License is invalid for current server

Cause

There are more users hosted on the server than allowed by the license limit.

Resolution

1. Check the user amount needed for the license:

   How to choose Imunify360 plan?

2. Upgrade the license to cover all users:

   How to upgrade user amount for Imunify360 extension?

Additional information

• What does "user" mean when buying a license? Types of licenses | Imunify Security Products — CloudLinux Knowledge Base
• License is invalid for this server. How to count the number of existing users on the server? | Imunify Security Products — CloudLinux Knowledge Base