Tbh you could experience that with many printers. You should always check your endstops/sensors/belts etc. Lose screw can make your endstop out of position and collision can happen easy. Slicer issue is simmilar thing. Not biggie, glad you sorted that.
Best support you can get for ender is community like Lemmy (or old reddit), and its amazing support. Only thing you dont get here is replacement parts or money back