IRS notice CP14 - https://www.irs.gov/individuals/understanding-your-cp14-notice
Accepted only means the IRS received the tax return as filed. It does not mean the information provided on the tax return is accurate.
The IRS is claiming that you did not pay the taxes owed. If you have proof of payment either from a bank account or a credit card account then contact the IRS using the phone number provided in the notice.
TurboTax does not pay taxes owed. If you had taxes owed then you were given several options on how to pay those taxes - https://ttlc.intuit.com/community/tax-payments/help/how-can-i-pay-my-federal-taxes/01/26212
