Hi there,
Thanks for reporting the issue, we are happy to help.
You can try connect/disconnect to WordPress / Google accounts in the connection test page, to do that please head to?https://YourSiteURL/wp-admin/admin.php?page=connection-test-admin-page. It’d be great if you can let us know what is showing on the connection test page after you try to connect the Google account.
Cheers,
Ian