Need Help End Auction - Time Sensitive

Hello I’m trying to end and auction. I have a collector who wanted to bid on my piece but was unable to. After multiple attempts, he offered me a price that I accepted, but I am not able to end the auction. It keeps giving me an error. My auction ends in 5 hrs and I would really appreciate some help on this.

Browser: Google Chrome
Wallet: MetaMask
Wallet address: 0xc98520e01789D21509EC449DDB5285Fc56a6EED8

hi danici.eth,

once an auction has started, its details (start/end date and price) may no longer be modified.

this behaviour was included to ensure fairness and transparency for marketplace listings, as well as protect both seller and bidders during the auction