Deliberately change thr price and liquidate the position

At around 9:10 p.m. on June 7th, the teacher led us to go long on the Bitcoin index. Who knew that it suddenly fell by 6,000 points and then went back and forth quickly. The time was completed within 30 seconds, causing us to liquidate our positions. On June 8th, I will go again. I found the trend chart on Sina Finance at around 9:10 pm on the 7th, which is completely different from the platform. The first and second pictures were found on Sina Finance, and the third picture was given to us by the teacher on the platform. It does not match at all.