This issue may be related to your internet connection. Connecting to the Internet is required to update TurboTax and ensuring your completed tax return is accurate and ready to file.
To check your Internet connection:
Please see this help article for more information and tips to check and restore your Internet connection for using TurboTax.
You might also try restarting your device, or using a different browser. Chrome generally works well.
If you still need assistance, try the troubleshooting steps in this TurboTax help article.
If the problem persists, I recommend that you contact TurboTax Support for assistance.
Update:
Had the same problem. I switched to using a different computer and it worked
Check your Internet connection. Logging out of TurboTax and back in, changing browsers (Chrome generally works well), or clearing your cache and cookies often helps.
Try the troubleshooting steps in this TurboTax help article.
If, after following the steps. you are still having trouble moving on to make a payment, you can contact TurboTax Support for assistance.
You can also opt to make a payment directly on the IRS website.
If you made an additional payment before filing the return, enter the payment in the Federal section under Deductions and Credits, Additional Payments under Estimated Tax Payments. Once you have entered all of your payments in the Federal section, then revisit the Form 2210.
In TurboTax Online: