THANK YOU SO VERY MUCH. This fixed the issue. I went to my Apple Settings > Date & Time and saw by default the date format was YY-MM-DD. The correct location was not selected. I uncheked the option that says "set date and time automatically" and I changed the location to my location and the date format changed to MM-DD-YYYY format itself. Then I opened the QB2024 and tried to update/record an invoice with last year's date and it worked fine as my QB 2016. Now, we can use the new version. I was about to ask for a refund since we could not use the software. But now we are good. Thank you!