If you are talking about the 'form view' 1095-A Health Ins. page, and no errors show on the form itself, a couple of things to check are if you entered those premiums anywhere else (either in the health expenses section under premiums, or in the section about high deductible insurance prior to that).
Another issue with that page can be whether unemployment was recorded as income (or not) and the form requires some questions regarding that to be answered first - and of course all the arguments have to agree: if you got unemplyment it should be recorded as such, or the set of conditions in the reverse case must also agree... You may have also received notice that you were eligible to receive unemplyment - even if you did not actually receive any in 2021.
I know it can be irritating but sometimes the format can be the issue (there is a space, decimal point, letter etc before after or somewhere else that ruins the form's day...).
If you still haven't found it, and haven't already proceed through to the end of the tax program, to save time I highly suggest going forward and then when you get to the review process prior to filing, the program should help you find exactly where the error is in the review and error process... If it ISN'T clear, report back here so we can bring it to TT's attention.
Here is a general info posting on 1095-A.
https://ttlc.intuit.com/community/credits-and-deductions/help/where-do-i-enter-my-1095-a/00/26456
Good luck!
