Is that the owner of the btctrade exchange that had a chat room back in 2016-2017, and also had the yuanbao coin?

In 2017, as a post-94, I had 37.7 million Dogecoin in the btctrade exchange, with a total of 4 accounts. However, after 1994, all my data was cleared, and at that time it was not worth much; I bought it for about 200,000 RMB. Is there any explanation for this? After 1994, I completely lost contact with the btctrade platform.

I won't share too much privacy here, but I can casually search my email and find many records of withdrawal and deposit at that time.