Trading was restricted,Withdrawal rejected， resulting in significant financial losses in my account

To my surprise, on Friday, August 15th, after making my fourth withdrawal, I attempted to make a 1-lot transaction as usual but failed. At first, I thought it might be an IMR limitation of Squaridfinance, so I tried 0.5 hands, but it was also rejected. I thought maybe this was just a quirk of Squared Finance Friday, so I calmed down. But on Monday, the same problem reappeared! I couldn't even execute 0.4 hands, which ultimately resulted in a loss of funds for me. I feel really sorry