Please answer a question about the following article about Friedrich Hayek:

Building on the earlier work of Ludwig von Mises and others, Hayek also argued that while in centrally planned economies an individual or a select group of individuals must determine the distribution of resources, these planners will never have enough information to carry out this allocation reliably. This argument, first proposed by Max Weber, says that the efficient exchange and use of resources can be maintained only through the price mechanism in free markets (see economic calculation problem).

What did Hayek claim those who must distribute resources would lack most?
enough information