Celsius is a crypto lending platform and is now bankrupt, suing Tether for liquidating over 39,542 Bitcoins without notice.
Before the bankruptcy, Celsius borrowed over 39,542 Bitcoins from Tether, when it reached the liquidation threshold, Tether contacted Celsius to request additional funds to avoid liquidation but did not receive a response from Celsius.
This issue may have been the reason for the $49k Bitcoin dump
Good Luck
