Neptune 3 Pro, Prusa slicer won't stick on plate

[Bikeracer2020]

Did you print a few squares to check the bed level?

Can you go into your slicer settings and increase the 'Z' offset by either plus or minus 0.02 mm and redo the print and see what changes?

I'm assuming the photo is of the bed leveling which sets the 'Z' height?

The 'Z' offset is a fine tuning of the distance of the nozzle from the bed and only affects the first layer