Yes, there is an error in the section. Try this workaround:
Enter $0.01 in the Column C. TurboTax rounds numbers, so the $0.01 amounts in Column C will be recorded as zero's on the Form 8962. This will accurately report your 1095-A and Column C amounts on the form.
For blanks in Column B, see the link below to look up the missing amounts.
https://www.healthcare.gov/tax-tool/#/
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