Ultimaker 2 go Damaged itself?

[Local 0]

Hi all, having some trouble with my Ultimaker 2 Go, almost at the end of a print the printer give me the Z axis is warning and pushes the platform up into the nozzle.

Cleaned the machine down made sure nothing was nothing obstructing it and after manually moving it up and down a couple of times,, started the machine up again.

Everything looked fine until I start a print, using the same gcode I've used three times in the last couple of days, same settings and filament and I get this......

I've done all the usual checks,nozzle's clean, settings are fine, to double check I did a factory reset but they're still coming out the same, anyone come across this before?

I think there might be a problem with the Z axis but I don't know how to check...