The price in the platform is abnormal,with orders stopped loss inexplicably

The price in the platform is abnormal, with no price in the market at 23:05.The price of stopping loss hasn’t reached,while my position was closed.The platform gives a reply that is indeed a few milliseconds that reaches.It is serious slippage since the normal spread was only 80 points.The At that time, the time period was not a frequent trading stage. The floating time was not large,while it did cause the my stop-loss price of 7904,during which there were at least 650 points in the middle,which was 8 times with the normal spread.
I also noted that the time period from 23:03 to 23:09, the quotation of USGFX platform was blank,and the platform closed position for me at 23:05.
I am seriously doubt that the platform is unstable, causing such a loss.The platform fooled us by the simple price change of a few milliseconds, which is obviously the platform’s problem, while it requires the customer to bear the loss.