Ooznest Z1+ 1500x1500 Y-Axis Problem

I have been using my machine successfully for the past few weeks but all of the sudden the Y-axis will remain up front but thinks it is homed. I cannot even jog it back as it thinks it is already there and won’t allow any movement at all. Zero problems until this randomly happened. I’ve tried restarting the machine and manually jogging it with the controller but to no avail.