HSA Excess Contribution Error

I began a new job in 2021, my previous job did not have HSA and I have never had one previously. As of right now the total amount contributed to my HSA, including my employer contribution is $870. I am receiving a notification on TT that $790 (the number supplied in my W-2 in the 12-w box) is triggering an excess contribution. Understanding that contribution max is $3,600...What?