Corruption and inefficiency
Also look at glasnost.
There were a few factors that played a significant role in the collapse of Russian control over Eastern Europe. Under the Soviet System, a few of the leaders had established a Communist dictatorship. The Soviet Union had a command economy which is one with a central authority deciding on what goods will be produced. Most Russians believed that communism would improve their lives, since most of them had a bad history of being poor peasant farmers. Instead, they found that the Communists had become their new masters. People remained poor, and moreover, had no freedom to make personal decisions or express their opinions. The state controlled their lives and economy. The millions of people who resisted or objected them were either sent to prisons or forced-labor camps. Many more were executed. Terror was the key part of life under communism.
Industry and agriculture was also gone corrupt. Under Soviet rule, farmland was recognized into state farms and collective farms. Most of the farmers were forced to work on them. On state farms, workers received wages as they would in factories, while on collective farms, workers shared any surpluses that remained after products were sold and expenses were paid. Almost all the time, Soviet agricultural production and distribution remained low because of the few reasons for the farmers to work quicker.
Is that it?
Go back and reread the question. Have you answered it?
Most of what you've written describes life under communism for the 70 or so years before the Russian collapse.
no, i'm about to write more