Is your temperature set correctly?
In the UK the recommended setting is:-
Fridge = 3 degrees
Freezer = (minus) -18 or -19 degrees (depending on model)
Does your model have a evaporation tray? This may need emptying.
I hope you get to the bottom of your problem.
All the best
Edit: temperature sourcehttps://www.samsung.com/uk/support/home-appliances/what-are-the-ideal-temperature-settings-for-my-sa...
This may also help narrow it down,
(Why is my fridge leaking water)https://www.samsung.com/uk/support/home-appliances/what-should-i-do-if-i-suspect-my-samsung-fridge-f...