Venezuela is in an economic crisis, with shortages of food and other everyday products.

This is partly because price controls tend to cause shortages, but also partly the result of political struggles between the state and businesses run by plutocrats. For instance, the state might have stopped Polar from getting foreign currency to buy malted barley because that company is run by someone who supports the right-wing takeover, which was probably organized with help from the US.

Corruption surely plays a role too.