If you receive the above message that means the Control Software is unable to compute the Arc it being asked to cut. The issue is usually caused by a math error by the user or CAM software creating an incremental arc.

If this happens try enabling or disabling the run setting "Arc Centers Incremental"

Goto: Setup Menu -> Run Setting -> Arc Centers Incremental Check box.

Check / UnCheck - Arc Centers Incremental

Click OK.

Be sure to verify your program before trying to cut anything after making this change.