form 1095-a: switched from ACA insurance to employer provided insurance mid year 2021. TT gives error messages.

Is TT correct in calculation that i need to repay ACA subsidy due to my higher-than-expected income level for 2021?  The reason for question is that TT reports errors after zeros are inserted for the months after i  switched out of ACA insurance to employer provided insurance mid-year 2021 (as reported in my Form 1095-a). 

How to fix?   

thank you.