It is worth noting: "The peas, onions, beans and tomatoes did great in the raised bed. " All of these are self pollinating and do not require bees or other pollinators.
"However, the cucumbers, melons have not. ... my zucchini bed produced flowers but no fruit yet. Even my pumpkin patch is only flowering not producing anything. " All of these require insect pollinators. Zucchinis and pumpkins that flower but don't fruit, would likely because the flowers (presuming you have both male and female flowers present), did not get pollinated.
". I have noticed there are no bees or bugs like we have had in years past either." This would be the problem, that your pollinators disappeared. Did you or someone near you spray poisons? Bees are in big trouble in this country (and maybe elsewhere, I don't know) due to a variety of stresses they are under, including the use of multiple poisons. Bees are exposed to dozens of different pesticides (and herbicides, fungicides, etc) every day. Many of these chemicals, though harmless to bees individually have synergistic effects, combine to be very harmful.
https://www.panna.org/sites/default/fil ... ay2012.pdf
https://www.science-live.org/bees/about/ ... ouble.html
As bobbyg said, one thing you can do is plant lots of bee-friendly flowers in your garden -- and DON'T use poisons!
This lists a few good flowers for honeybees: https://fafard.com/terrific-flowers-for-honey-bees/