What could be causing the [M7057] error code in the vacuum suction machine code [KM-ASSYH2-07]?

What does the left suction nozzle being "abnormal" mean in the context of vacuum suction machine operation?
The solution to the M7057 error often involves adjusting the suction vacuum settings and correcting any faulty hardware issues. Using the appropriate vacuum tool and removing any debris or blocks in the nozzle may also fix the issue.