Geeetech

I am surprised there are no instructions on how to clean the plate. I have only done 5 prints and the last one, the 20 mm xyz calibration cube, came unstuck and moved, so I printed at a different location. Is this supposed to happen, and if so what are the cleaning instructions?
I have read that hairspray and kapton tape are options but Geeetech should provide some information on care of the printer?

Update - After trying to print the xyz cube in a different location it still came off the bed very near the end of the print

Hi，When you print, you need to heat the temperature of the hot bed to the printing temperature that your printing supplies need.
Level the printer. If cleaning, try isopropyl alcohol.