Why my fridge is leaking water under the vegetables tray ?

SOURCE: fridge bottom has water under vegetable drawers

Make sure the door is closing properly, that nothing is trapped in the door seal, and that the seal isn't torn or distorted. The seals are there to stop moist external air getting in then dropping its load of moisture as it cools. A.

SOURCE: my fridge is leaking

i am afraid the insulation is breaking down on your unit and it is not a worthwhile repair scrap it and buy a new 1 it is somthing that happens with age good luck but it could be a broken water tray that is mounted on top of the compressor if u are lucky they r prone 2 getting brittell and cracking and letting water past good luck

SOURCE: Water in Fridge

Hi gchives.
My own fridge had this problem and it turned out to be a blocked drain at the back of the fridge compartment, just below the cold plate. The water is supposed to condense on the plate and run down to a drip channel, and then through a tube onto the top of the compressor, where it evaporates.
On mine, the tube was blocked with gunge so the water spilled over onto the bottom of the compartment. I got a length of earth wire - the sort used for wiring UK domestic ring mains - and poked it down the tube to clear the gunge away. I then chased it through with some hot water and washing soda and it has been fine ever since.

If these suggestions do help you solve the problem, please give my reply a rating to help others judge my knowledge.
If they do not, please give me more details so I can try to help you further.
Cheers, D

SOURCE: Water leakage

The problem is likely a blocked drain from your defrost system.  As the system defrosts, liquid water should make its way to a pan in the condenser area under the box to be evaporated.  Clearly, something is causing overflow or the tube has broken.  You'll have to eyeball it out.

SOURCE: WATER LEAKING IN BOTTOM OF REFRIGERATOR UNDER VEGETABLE KEEPER

This sounds like the problem I responded to for another user. I hope it works for you. I got this when the J-trap on the back of the fridge was blocked, not allowing condensation to properly drain into the drain pan.

I solved this problem by pulling the black drain tube off the J-trap (you may need to loosen the holding clamp at the bottom of the tube), giving the J-trap (it's about 2" round) a slight twist to release it from the sheet metal, and carefully pulling it out. Be careful as the sheet metal is sharp. You will see a 1" PVC tube end that fits inside the J-trap. This must be inside the trap when reassembling.

Flush out the J-trap and reassemble.