If i had a child on taxes and received two CTC refunds.why did they stop? Nd how did the child get removed.

No one can see your tax return or your information.    Do you happen to have an amended return in the system?   If so, then your eligibility for the monthly CTC payments is affected and you will not receive them.  Or if there is some sort of mix up with the IRS, then you can get the CTC when you file your 2021 return and claim an eligibile child.

TurboTax has no involvement in the monthly child tax credit payments.  The IRS is sending out those payments by direct deposit or by mailed checks or cards.

  This is a brand new system thrown together by the IRS after Congress changed tax laws in the middle of the tax season.  There are going to be bugs, glitches and mistakes made and folks will unfortunately have to be patient (or endure aggravation and inconsistency) until they sort it out.  

https://www.freep.com/story/money/personal-finance/susan-tompor/2021/09/17/child-tax-credit-september-2021/8352484002/

If you do not receive the monthly payments you will be able to get the CTC on your 2021 tax return.

https://www.irs.gov/credits-deductions/2021-child-tax-credit-and-advance-child-tax-credit-payments-topic-a-general-information