Here's the thing... you should notice (assuming same premises as our American made Fridge/freezers) a cold air inlet door at the top or back of the freezer. In most combo units the coldest air comes in to the freezer section and then, through another, thermostatically controlled door (it often has a moving mechanism to open or close it depending on demand) to the fridge. The cold air coming in has a fairly high humidity level that's causing your droplets. Do this first; place an ordinary thermometer in the freezer to see what the temperature is on average. It should be, roughly +28 to +30 degrees (F) Did I say I am in the U.S.?). If it's any colder than that, you're not only wasting energy but causing uneeded production of humidity. By the way, a properly operating fridge should run about +35 to perhaps +38 degrees F.
(Check to see if there any moveable louvers on said door that can be directed more downward).
Further, the cooling system removes most of the humidity from the incoming air, so, while the absolute humidity (amount of water vapor in the air) is low. The relative humidity is, however, close to 100%. The only place the extra humidity is being introduced is when you open the freezer door. Answer: don't open the freezer door... well, since that's not practical, open it as few times as absolutely possible. Decide what your going to get out of the freezer before you open to preclude standing there with the door open, scratching your head and wondering where that frozen pizza you put in there a couple of days ago went...
You might also check the seal on the door to assure an airtight fit... best of luck!