frozen account, unable to withdraw, online serdown

I am a victim of romance scam name Sherlee/ Shirley in english name, Yang Li in chinese name ，thru investimg money with the trading broker name, YSHX- YUN SHANG HUI XIN LIMITED, website: https://www.yunshfex.com/en/platformplatform. The broker-YSHX frozen my account worth $82,872.50 and I am unable to withdraw money. YSHX online service rejected my withdrawal and service down because they said I did not complete the 50% of the require platform mechanism which I do not understand. YSHX said that to withdraw my funds anytime I must deposit the $41,440 to my account before August 10, 2023, if not according to them the FBI will involve, and my account said triggered the AML law. All I want is to withdraw my wired money thru my bank worth $25000. I have all the evidence with the lady name Sherlee thru whatsapp with pictures, video and voice clip and the broker documents online service with all the transactions. Please help me to recover my funds.