The 2nd set of leaves should not be doing what they are. They too are beginning to suffer. This is a bottom issue climbing UP the plant and will continue if you dont fix the issues causing this.

Also normal death for the first set should not be looking like it looks either.

I suspect:

Light is getting into the soil and beginning to disrupt internal nutrient flow.

Also, the type of container you have her in, when handled will cause the soil to separate from the edge of the container, also allowing light and air that is detrimental to the health of the plant.

I would suggest transplant into a more suitable container.

This should fix the problem.