YOU'VE PUT IN YOUR INITIAL POST APRIL 30TH "IST" TIME as the end time.
IST TIME IS 9.5 HOURS AHEAD OF EASTERN TIME.
YOUR LAST POST IS 9:51PM EASTERN, THEREFORE THE AUCTION IS CLEARLY OVER.
That means your last "up" post is invalid.. Are you doing this on purpose and hoping it won't get noticed or it was just a mistake