Disconnect license key to reconnect in other website

Hi guys, how do I disconnect a key from one website and reconnect in another?

I had this mabella.pxads.com.br which i designed the website and connected everything.
Now we use mabellabrasil.com.br but I cant update the plugin and use the key because its connected to the staging website.

Key: …….129249b2020760ee

How do I fix that?

Thanks in advance.