rnb_bolii wrote: I thought you were fighting it now...
no, I wanted to gather information on how best to go about it first. I don't think anything will happen in 3 days. The doors can be closed. They were just slightly ajar all night and half a day, because it was not even visible that they were not closed. And all these grille-tubes were covered with ice, especially at the top.
This has happened before, because these doors do not close automatically. Then there was less content and I put everything tightly in one drawer, wrapped it in a blanket, put it on the floor because it was the coldest there, and put a pot of hot water in the freezer. Unfortunately, the food defrosted faster than the freezer

and now i would like to avoid this situation
Added after 7 [minutes]: Now I googled that there are some antifreeze sprays for defrosting freezers. For example this one:
https://obrazki.elektroda.pl/2796348300_1607127117.png Worth buying? Will this work at all?
Added after 11 [minutes]: And for the photo, I would have to take out at least one drawer, and I don't want to add heat there unnecessarily. I have described exactly. 3 drawers, including two on the shelves made of this strange lattice, which I have already given a picture, and at the very top and in the back, behind the drawers there is also this nasty lattice with pipes. And there at the back and upstairs is the worst.
And the fridge-freezer is called Ardo, but I don't know the exact model, because I couldn't find it