N8n | Activation Key Has Already Been Used On This Instance

If the key is valid and belongs to you, n8n allows you to claim the license for the current active instance ID without re-entering the key manually.

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: Sometimes a temporary network glitch or an "invalid format" error (often caused by accidental spaces when copying) can cause the key to be flagged as used on the server side even if it didn't complete locally. How to Fix the Activation Error 1. Verify Your Current Status n8n activation key has already been used on this instance

| Cause | Explanation | |-------|-------------| | | You reinstalled n8n on the same machine, but the instance ID changed. | | Cloning or moving instances | You copied your n8n setup to a new server without deactivating the key first. | | Multiple containers/processes | Running two separate n8n containers with the same license key on the same host. | | Manual key reuse | You entered the same key into a different installation. | | Corrupt database | The license activation record was lost or corrupted, forcing a reactivation. | If the key is valid and belongs to