Bambu Labs A1 Mini 3D Printer Working but with Problem

The printer works but for some reason it doesn't always give a good layer and sometimes layer shifts although it extrudes perfectly

I don't know how to fix the problem so selling as spares or repair

Heats the nozzle and bed perfectly, Has no other problems apart from the mentioned.

Comes with Allen keys, filament and cable clips, Printed Poop bin and quick start guide.

RELISTED DUE TO TIMEWASTER