Beginner Gardening: Help saving my new Piri Piri plant, 1 by Williah

Williah wrote:
I just received a new, young piri piri plant. After a few weeks its looking weak. Would anyone know from the picture what is going on? I lowered the watering amounts, thinking that perhaps I was overwatering (I kept low levels to begin with), but still its getting weaker and dying.

Now I\'m thinking there\'s a weakness in the soil, as I am reusing soil from old, plant-failed pots. I did add fertilizer to \"replenish\" the soil, but I\'m no expert on how this work.

Any advise would be appreciated.