If you are receiving the error message below when attempting to reset your password, despite having made registrations under the email you will likely need to sign in with Google.
If you are still not able to sign in with Google, you will need to create a new account.
"This email address is not associated to an active account. To activate please Verify your account"
For further instructions on how to sign in with Google, please refer to this support article here:
Participant - How to Sign-In with Google