Solid food

Hi mummies, my daughter seem like not into solid food. tried porridge, after 2 to 3 mouth she started to push it out, keep on "bu bu bu" telling us she doesn't want it anymore. I tired giving her wholemeal bread, she did the same too. I tried blw, she just playing with the food. yoghurt, fruits, pasta all I tried. Her milk intake from 180ml became 100ml to 140ml. Kinda worried, what should i do. Isit she still not ready for solid food?