Problems activating licensed proxmox.

Best regards.

I am having difficulty activating the proxmox server since I have moved from an old physical server to a new one. I deleted the license and it shows me the following error:
You do not have a valid subscription for this server. Visit www.proxmox.com for a list of available options.
Taking into account that I have deleted the licensing of the previous one and installed it on the other one.
but I get the window that says he is not licensed.

Can this problem be solved?

key renovate proxmox.png
 
You need to reset the license in Proxmox Licensing Portal.
Just logon there and "free" the license.... then you can reuse it on a new server....