You're welcome. Assuming none of the other problems I mentioned are preventing them from laying, you can add supplemental lighting to their coop. Just make sure that it's on a timer. The light can come on early before the sun rises in the morning, but make certain it shuts off before the flock...
Aloha, and welcome to BYC. Glad you decided to join our flock. Which area of Hawaii are you in? My family and I live in Hawaii for 23 years, first on the big island and then on Oahu. Molting will definitely affect their laying as hens stop laying while they are molting. If that is the cause of...