What is the main problem of the economy?

For a long time, everyone has been arguing about this topic. However, the problem remains unresolved. The problem with the economy has always been a lack of money. Whichever country started talking about money, it all boiled down to the fact that it is not there or not enough. Then we are faced with the following question. Where do they go? Despite the political situation in the country, it is safe to say that all the money now goes to third world countries. Syria, Cambodia, Iraq, Nigeria and many other countries now need humanitarian assistance from wealthier countries. Our country is such and sends most of the funds there. Theories about the theft of money by officials also have a place to be, however, all funds go to good deeds, not only for other countries, but also for the inhabitants of our country.