My String Beans Have Blooms But Do Not Produce, Do They Need A Specific Fertilizer?

Question

They produce once, but then they don’t produce. They are watered either every other day, or every day, depending on the temperature.

Answer 1

You don't mention whether there are new flowers that don't produce, or if the plant stops producing entirely. Also, each plant is programmed to produce a certain number of beans, so if you've harvested a healthy crop, that may be all you're going to get from that plant.
If you scroll down on this link a bit to our Gardening Know How articles, you'll see a series of pieces about bean plants - maybe these will help you identify the problem: https://www.gardeningknowhow.com/search?q=bean%20plants%20not%20producing