Simplify the following text for a Grade 9 native English-speaking person.
Original: The following year the High Court of Australia ruled that resumption of Oceania House was unlawful , but the Australian government ordered that no government business was to be granted to his shipping company , an action that contributed to his bankruptcy .
Simplified: The following year the High Court of Australia ruled that the government could not buy Oceania House . Instead the Australian government ordered that no government business was to be given to his shipping company , an action which contributed to his bankruptcy .