Issue with Z-Axis Values in CNC During Measurement Routine

This past week, I’ve encountered a recurring issue when running a program in DCC mode with the students. In manual mode, we have no problem taking measurements, but when we run the measurement routine in DCC, the CNC gives us an issue where it goes out of the Z-axis values of the machine (Image 3).

The problem occurs when the probe is positioned above the part (Image 1), but the machine coordinates are, for example, as shown in Image 2. When running the measurement routine, and the probe goes to Z0, that’s when we encounter the issue with the Z-axis values.

I assume I need to manually change the Z value? But I don’t know how to do it.
I also assume the students have accidentally changed that value at some point recently, as the problem is new.

I would appreciate any kind of help if somebody knows how to fix it.

Thanks in advance.