Child Tax credit line showing $0 Why?

The Child tax credit line is showing $0 dollars compared to last year which showed $4000. We did receive child tax advanced payments in the amount of $2577.00 which would have been half and then the other half would be filed for taxes this year. On the Additional Child Tax credit line below the Child tax credit line , it shows $2572.00.  Can you advise as to if I'm getting the rest of my child tax credit and why is the amount owed is not going down ?  or why does the program not show the the other have of the child tax credit ?