Why are the terrible load shedding in Bangladesh, what`s the solutions?

Rajshahi division is in the grip of terrible load shedding, the whole district including Pabna city is in the grip of load shedding. Night and day, half an hour, one hour after the electricity is coming and going. Ordinary people have fallen into extreme misery due to this. Frequent load shedding is also taking place in the districts of Mymensingh region. Consumers in Sylhet and Noakhali areas are not getting electricity for three to four hours. Load shedding is also going on for two hours a day in different areas of the capital Dhaka. as well,. But why?