We don't have the option to sign in into your Make account with Google SSO at the moment, but it's something that is on the top of our roadmap list.
Until we have it available, please use following workaround to have Make sign in from iClosed.
Enter user email and confirm Password reset, to receive Password reset link
Open link and set password manually
Sign back in iClosed and navigate to
Integrations to connect your Make manually
