Need Help: i could NOT login as root

I was re-configuring AWS S3 Bucket policy and Accidentally i got locked myself accessing the S3 bucket. So i tried to login as root to delete the s3 bucket policy But i could NOT login as root. I do have Root account credentials and 2FA device and tried resync the device but i am receiving below error.

Authentication failed Your authentication information is incorrect. Please try again.

any help would be appreciated.

Thanks, Bommuraj