Sv06 z axis not moving and crunch noises

Hi my when i turn on my svo6 for the first time and try align z axis i hear a crunching noise and the ganrty does not move and gives me an error saying printer halted driver error

Have the the Z-Axis Couple Grub screws been tightened to the Threaded Rod when you put it together ?

Do the other Axis move when you hit the “Home” button on the LCD Screen ?