Is this on the federal return or the state?
If the state, which state?
I entered (0) for property taxes paid on the federal return and the program did not like it, I selected "Skip for now" to continue and there was no additional error reported.
I also question when you say "General Property Tax" and wonder if perhaps you are entering (0) in the SALES TAX section.
Property tax is located under
Deductions & Credits
Your Home
Property Taxes
Sales tax is located under
Deductions & Credits
Estimates and Other Taxes Paid
Sales Tax
The program would not like zero entered for sales tax for a state that in fact does have a sales tax.
Please review your entries, leave the property tax fields blank if you do not pay property tax. Adjust the sales tax if that is where you entered the zeros.
If you are still having an issue, please continue the question and provide any additional details that might be helpful.