PeckShield: EOS mainnet lost blocks for 3 hours yesterday, and the number of blocks produced per hour dropped from about 7000 to less than 6500

According to the PeckShield shield monitoring, the EOS mainnet began to lose blocks for three hours starting at 8 PM Beijing time on January 7th: Normally, the number of blocks produced in an hour was around 7000, and it fell below 6500 at 8:00; then at 23 o'clock Back to the number of blocks produced by 7043, the blocks may have returned to normal.