What were two things severely hurting the soviet economy just prior to its fall?

The two main things that were severely hurting the Soviet economy just prior to its fall was 1) that it was operating under a command basis, meaning that the government was controlling output which led to an improper estimate of demand, and 2) that the country had pushed forward with industrialization too quickly, leaving no room for other industries. 

Ican't answer this for you unless you complete your question