Have you done a full calibration of your 5MPro and prints still aren't sticking or the nozzle is scratching into the print bed. In this case the nozzle may be bent or you need to change the z-offset.
To change the z-offset, start any print and wait for the nozzle and bed to get up to temperature.
Press the icon in the bottom right that looks like a notepad.
From this menu you can adjust not only the z-offset but also fan speeds. The bottom left option allows you to increase or decrease the distance between nozzle and print bed.
Alter the distance until you find the sweet spot where your first print layer looks like the middle area of this image.
If you have not already calibrated your machine, go back and do that first.