Thanks for reaching out?@lawrensh. As the “Redo plugin setup” button doesn’t allow you to proceed, please perform a plugin reset and share whether you’re then able to proceed with setup?(Tools > Available Tools > Reset Site Kit).
Note that by resetting, you will need to connect all previously connected modules once more.
What I suspect happened was that when setting up Site Kit on your new site, something at host or network level impacted your site credentials. By resetting you’ll reset those credentials.
Let me know if you have any questions with the above. We also have a guide on the plugin website in relation to this error which contains more details of this.