Ender 3 V3 KE Overprinting

I’ve had this printer for less and a week and I now can’t print anything it’s like the first few layers are printed and then the next layers are printed shift upwards and out of position, and the print fails.

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Layer shifting, is your Y belt loose, not tight enough it can skip. At the back of the base there is an allen screw to adjust the tension, don’t make it too tight, ideal tension when you pluck the belt it will be quite a low note. I had a similar thing with my V3SE but that was down to too low current to the stepper motor, not had that problem with me V3KE.