Here's an article from CoinDesk on this:
CoinFLEX was spun off from Coinfloor Group in 2019.
CoinFLEX Pauses Withdrawals Amid ‘Extreme Market Conditions’ and Counterparty Uncertainty https://www.coindesk.com/business/2022/06/23/coinflex-pauses-withdrawals-amid-extreme-market-conditions-and-counterparty-uncertainty https://archive.ph/ayv6e <-- An archive, which may be easier to read