Unfortunately, all heads to a scam that the OP has fallen. It's a local transaction that appears on the screenshot, showing that whooping amount of 177k BTC. Mostly likely, the scammer showed that wallet, with the saved transaction, and asked for money, for it.

I may be completely wrong, in these points (which would be hopefully the best for the OP), but how come someone would send this amount in BTC to a wallet and sell it. That alone would be a big red alert. Hope if that was indeed the case, the OP didn't lose too much money on this.