This could be a sign of overwatering; is the soil constantly wet? Does the plant sit in a puddle? If so, lift it and let it drain.
Yellow leaves could also be cause by a fungal pathogen. Let it dry out if wet and give it air, outdoors in the sun, if possible. Also, when you water, water at the base (ground or root level) of the plant, not from the top down. This condition should not be fatal to the plant but we can not say for certain.
This could be a sign of overwatering; is the soil constantly wet? Does the plant sit in a puddle? If so, lift it and let it drain.
Yellow leaves could also be cause by a fungal pathogen. Let it dry out if wet and give it air, outdoors in the sun, if possible. Also, when you water, water at the base (ground or root level) of the plant, not from the top down. This condition should not be fatal to the plant but we can not say for certain.