I'm trying to file for an extension. It is April 17 and it won't let me pay estimated tax. Taxes are not due in MA until April 17. Please help!

You can make a payment directly via MassTax Connect: https://mtc.dor.state.ma.us/mtc/

MA automatically grants a 6 month extension if you have paid at least 80% of the tax due.

This problem is that TurboTax will not let me file for a FEDERAL extension. Nor will it let me pay estimated tax. When I file for an extension it asks me if I'd like to pay estimated tax in the meantime. When I try to pay by EFT it asks me the date I'd like to pay. When I put in today's data, April 17, it tells me the date can't be after April 15. This is broken, both federal and state taxes are due on April 17 in MA. If I put in April 15, it tells me the date can not be before today. So I can't file an extension, nor can I pay estimated tax. Please help!