Girls, hello everyone! Maybe someone has encountered something similar…

Girls, hello everyone! Maybe someone has encountered something similar? Baby is almost 8 months old, we started introducing solids at 6 months (we're on IV feeding), he ate the first porridge well, only I started adding cereals (around 7 months) as he stopped eating porridge altogether! At best, he eats vegetables like broccoli, zucchini and fruits, but refuses everything else! I don't even understand what to do with this ? We're still sick now, hopefully, it might be because of that he's refusing everything, but it started like this even before the cold :(