State tax filing

TurboTax suggests filing for an extension since the TurboTax software won't be updated until 5/20/2021. The software doesn't offer any instructions for filing a State Extension. The message I received is on or after 5/20/2021 update the software and review, then re-file.  New Jersey requires an 80% payment for the extension to be approved. I tried filing an extension and submitting a payment using 80% of the estimated payment and the request was denied using different credit cards.  After some digging I found  New Jersey Division of Taxation wants 80% of the gross taxes owed. Line 44 of form 1040.  I waited sometime and went back into the site to re-enter my information.  I was going to try it again using the estimated payment amount first. The message I received "You have already submitted an Extension request on 5/16/2021".  I didn't receive any confirmation, (request #, email or text).  New Jersey Division of Taxation only has normal business hours so I couldn't get anymore information. I have no idea if the extension will be approved, my payment didn't go through and after midnight tomorrow, will I be hit with a penalty for late payment?