What is the problem ?

It is "red spider mite".

Spider mite aside (oh wow are these Ladybirds😍) nice solution u have N,K deficiency but there is no point to feed anymore, let she starve and chop chop

hey, what are those circle black things on the lower leaves? che little points on the upper leaves could indicate a pest, (spider mites?). rub the tip of your finger benath the upper leaves and chec if there any bronish lines left on yoour skin. that indicate spider mites. give a check anyway at those scary black aliens on the lower leaves anyway