After you file

@Lil_cuteangel132000   Is this the first year you are claiming him?    Did you claim a different dependent on your 2020 or 2019 return that you aren't claiming this year?  You may have already gotten the 3rd stimulus for a dependent.  

So, if you lost one qualifying person you aren't claiming this year and replaced that person with another dependent , you still have the same number of persons on your return.  The IRS shows they already sent you the full amount for that many prople.