Incorrect Invoice Date
|The latest entry in your Store is more recent than the System date. Please adjust this computer's System date before logging in|
If an Order, Invoice, Payment, PO, etc., is saved with a future date (due to the Mac having an incorrect system date), no transactions earlier than the incorrect date will be allowed to be entered into Checkout. Checkout will not allow the user to log into the Store with an earlier date.
To resolve, you'll either need to restore the last backup that has no date problem or use the incorrect date every day until Checkout catches up to that date.