Activation problem: the key has already been used

[1009sentab]

I installed n8n via Docker, received the key by mail, an error appears when entering it: Activation key has already been used on this instance, I tried to restart the container and clear the data, but it didn’t help. What to do?

[Parintele_Damaskin]

Maybe this solves your question :

Can not active free n8n license key when self host Community Edition

Hello @hoanganhdinhngoc welcome to the community This already should activate n8n, no need to enter the key, That link should have already activated n8n, so there’s no need to enter the key manually. If your page looks like this, you’re all set [image]

If not, I suggest to run the following command to clear your current license:

‘docker exec -u node -it [n8n-container-name] n8n license:clear’