In 2020 I contributed $6k to my 2019 Roth IRA since they extended the period for contributions. This Jan - I did 12K with 6k for 2020 and 6k for 2021. Now Im over

Now Turbotax is saying Im over my contributions limit but its actually 6k contributions for 3 diff years - and i checked i was eligible to contribute for each period. How do I handle this?