Can you post the model number please.
Also when you say its getting very wet were is all the water?
Is it collecting on the bottom inside the fridge below the salad box?
Ok is the drain hole at the back of the fridge clear?
Get something like a cable tie and push it down the hole as far as it can go and poke it as this will clear anything blocked in there. Dont worry about poking anything in there as theres nothing in down there that you can damage or anything like that,
Then get a small cup of water and pore that into the hole and make sure it drains away down the hole ok.
Try that and see what you find and let me know.
Great, I thinkt that will cure the water leak from there for you now.
If you could remember to rate the answer that would be great.