Venezuela has always suffered from the same problem: near total dependence on oil. Under Chavez,the poor people got at least a share of the revenue. Before that, only a small bunch of rich people benefited.
Venezuela is being destroyed by the boom and bust cycle of capitalism. Chavez should have tried harder to develop agriculture in the llanosm where the best farmland that could produce many times the needs of the country is used to raise cattle for Mickeyburgers.
CAPITALISM is destroying Venezuela, The bust in crude oil prices from $160 to $3-0 a barrel is the obvious specific cause. When Maduro is out, the rightwingers that follow him will do even worse. But it won't be reported in the US press, because they will not be Socialists.