You may have 1 of 2 problems.

You will need to remove the control panel from the ceiling of the fresh food compartment to check both possibilities.

In the center,rear of the control panel, there will be a drain tube, that is inserted into the opening in the back wall of the compartment.

Check and make sure the tube has not been dislodged, from the drain hole in the wall, or cracked or broken.

While you're working in that area, you will need to get something flexible and 4 or 5 feet long(plastic tubing works pretty good), insert it into the drain opening in the wall and slowly, carefully push it down the tube until it extends down to the drip pan, to clear any possible clogs or debris in the drain tube.

I take for granted everything else is working the way you expect it to.
:) :) :)