All kinds of issues here.
Is that mold growing on the plant in the first pic? Symptomatic of poor ventilation/air flow. Increase the number of fans you have in your grow area if it is mold. What are the temps in your grow space? Humidity levels?
What soil are you using? Does it contain nutes? How often are you watering/feeding? pH of your water and runoff? It doesn't look like you have any perlite mixed in your soil.