On October 30th, there was a large amount of user feedback this afternoon. The digital cryptocurrency exchange BISS (coin market) did not respond. Up to now, BISS team members have lost contact, and team members and customer service teams have not communicated with anyone in any channel. This is completely different from the style of the BISS team's quick response in the past. The BISS team just completed the AMA event with “Bao Erye” on the evening of the 29th. As of press time, the exchange's BISS has plummeted by 50% and continues to fall. Someone in the community responded and no money was reviewed.