I have problem with this device, when hi finish frst round of cuting class after measuring work on display shows a massage:

Rear surface convex:
measurement inaocurate?

i=35 dz=2.21

confirm with (Enter)

after I press enter it shows another error:

Error

Nummer: 1407

Steuerung ist nich bereit.
Programmstart nicht moglich.
Z_ZST_WAIT_Z_ZPOS_RUN_E

thas anibody know how to solve this problem?

thanks,