you happend to be bartering and you miss calculate , it happens but there is a barter that very important to u that u need to do, sadly u are out of parley !!!
what if i thould u that there is a way but it comes with a cost .
u need 1 Item collection increase scroll, and use Manufacture as shown in the picture below
once you are finished u will obtaine this item called Crow's trade Voucher
as you can see in the picture u can use this item every 4 hours and u will recover 250 000 Parley.
(i see you grinders i know this is a bad way of using loot scrolls remember its for emergency ;D) RIP LS