I bought this LG One Door Fridge one year agao.
Last night I clean the fridge as in the freezer there are so many Ice that I couldn't keep things inside.

Since the ice is so thick that I use a knife to take it out. Suddenly while I was cleaning there come out some vapour with a little noise. After that my fridge is not cooling down.
I read in the internet that there is a gas in the Fridge that is keeping it cool and heard that it cost most than it worth. Can it still be fix?

Heard that this gas cause depletion of Ozon Layer and hence it is beyond repair.
I am not sure whether the vapour is that particular gas or not.
Your kind comment is appreciated.
Cheers.