What does the error code M7064 indicate in the context of the solution for the abnormal machine code in the Tray area?

What is the specific error id mentioned in this context, and what could be causing it?

What is the meaning of KM-ASSYH1-
The solution for the M7064 error in the Tray area may involve inspecting the upper jacking cylinder and addressing any abnormalities, such as replacing a faulty cylinder. The issue should be resolved as soon as possible