What's your question? Ask

This article will help: https://www.gardeningknowhow.com/edible/vegetables/squash/pollinate-squash-by-hand.htm

Here is an article that you may find helpful: https://www.gardeningknowhow.com/edible/vegetables/zucchini/solutions-for-common-problems-growing-zucchini.htm

It sounds like the plant may not be getting enough water. I would increase water to the plant. Water 1-2 times a week for longer periods rather than daily for short periods to make sure the water is getting deep enough for the roots.

This is blossom end rot. Here is more inforamtion: https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossom-end-rot-causes-and-treatment.htm

It is a pollination issue. This article will help: https://www.gardeningknowhow.com/edible/vegetables/squash/squash-fruit-falling-off-the-plant.htm

The plant should right itself in a few days. The leaves will naturally turn towards the sun, no matter how it is moved. Covering the roots back up was the right thing to do, and the leaves will follow shortly.