Z tool path over

Hello - I feel like this is a common problem but I’m not finding the answer to my issue. I homed my machine after putting it together and the z tool path is over. I read the car ticks on this website about zoning and I understand about the material being too high or the program being too high for the tool but I’m just trying to home it with the 3 axis probe. Does anyone have advice on how to remedy this issue? I’ve been dealing with it for a few days now, thanks!