The message ‘Z axis does not enable reset’ indicates that there is no limit switch enabled on the Z axis or cannot be detected at initialisation.
Some key points - including that the controller and stepper drivers must share a common ground (anode), or the level cannot be determined:
this should always be the case, anyway - so many problems I encounter are related to poor or bad earth.
If you make everything in your setup use a common ground, you can’t go wrong - laser tube, LPSU, drive/controller PSUs, controller, drivers, coolant reservoir, should all use the same ground.
All input AC power sources - power supplies, cooler, fan, air pump - should similarly use a common ground tied to AC power earth. I’m not a fan of tying your DC ground to your AC earth as things like your powerful extractor fan can cause glitches in your DC-powered devices, like your controller.
If your controller resets when you turn your fan on, it’s a good indicator that your DC is tied to your chassis ground on the machine. Most cheap machines are and people/OEM do it because it’s convenient, but run the wire - it’s a small inconvenience one time to ensure reliability and glitch-free operation.