Problem with print bed height on Creality Ender 4
Moving a printer would most likely affect the hardware rather that the software. Unless you have tinkered with the software over USB or loaded an unknown G-code file over SD card that has embedded G-code commands that change your settings.

The most likely solution is that the printer or parts of the printer shifted as such that the printer is not aligned anymore as it used to be. Re-calibrating the machine should fix that for you.